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In Whittier, Alaska, nearly the whole town lives, works, and goes to school inside the Begich Towers, an accidental small version of the arcology. The word was coined in 1969 by architect Paolo Soleri, blending architecture and ecology, for a dense megastructure aiming at autarky: internal power, climate control, vertical food production, and water and sewage treatment in a closed loop. Soleri pitched it against Frank Lloyd Wright's Broadacre City, which gave every family a one acre plot, and went further than Buckminster Fuller's domed Old Man River's City for about 125,000 people in East St. Louis. The idea answered the environmental alarm of the late 1960s and 1970s by shrinking the human footprint and leaving wilderness untouched.

Real attempts struggled. The Dongtan eco city near Shanghai missed the 2010 World Expo, the Ihme-Zentrum in Hanover slid into insolvency and decay, and Soleri's own Arcosanti in Arizona has been under construction since 1970. Saudi Arabia's The Line was cut in 2024 from 170 kilometers to 2.4. Fiction turned the dream into a warning, from Robert Silverberg's The World Inside to Neuromancer, SimCity 2000, The Ascent, Cyberpunk 2077, and Dredd.

• The elevator problem, where taller and denser buildings lose more of their core to empty shafts
• The Line's original pitch: 200 meters wide, nine million residents, zero cars, and a $500 billion budget
• McMurdo Station's yearly need for about 30 million liters of fuel and 11 million pounds of supplies through Operation Deep Freeze
• Silverberg's 1971 world of 75 billion people in thousand story urban monads where wanting to go outside is heresy
• Niven and Pournelle's Todos Santos, and the Peach Trees mega block of 75,000 residents in Dredd

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Frank Lloyd Wright was born in rural Wisconsin in 1867, though he spent most of his life claiming 1869. His father William, an itinerant preacher and musician, moved the family constantly and walked out when Wright was 18. In 1876 his mother Anna bought him a set of Froebel gifts, maple blocks meant to be arranged on a grid, and Wright said the feel of them stayed in his fingers for life. After dropping out of civil engineering at the University of Wisconsin, he arrived in Chicago in 1887, rebuilt after the Great Fire of 1871, and rose to head draftsman under Louis Sullivan at Adler and Sullivan. Buried in debt from clothes, horses, and violins, he secretly designed at least nine bootleg houses until Sullivan spotted one in Kenwood in 1893, and the two did not speak for 12 years.

Wright turned down Daniel Burnham's offer to fund classical study in Paris and Rome, and built the Prairie style and the open floor plan in houses like the Robie House. In 1909 he abandoned his wife Catherine and six children and fled to Europe with Mamah Borthwick Cheney, a client's wife. In 1914 a staff member at Taliesin set the house on fire and attacked the occupants with an axe, killing seven people including Mamah and her two children. Wright cleared the rubble and rebuilt, then went on to the Imperial Hotel, Fallingwater, and the Guggenheim.

• The 1911 Wasmuth portfolio of over a hundred lithographs that became a textbook for European modernists
• How the Imperial Hotel in Tokyo floated on soft mud and survived the Great Kanto earthquake of September 1, 1923
• The Usonian home, with slab-on-grade radiant heating and a kitchen opened into the living space after the Great Depression
• The Fallingwater contractor secretly adding steel to cantilevers that engineers warned would collapse
• Wright's death in April 1959 at 91, six months before the spiraling Guggenheim Museum opened

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Frank Gehry was born Ephraim Owen Goldberg in Toronto in 1929 and spent hours with his grandmother Leah building imaginary cities on the floor from wood scraps out of his grandfather's hardware store. His mother pushed him toward art and concerts while his father dismissed him as a dreamer. Fleeing anti-Semitism in Canada, the family moved to Los Angeles in 1947, where he drove a delivery truck, failed at radio announcing, hated chemical engineering, and finally tried architecture on a hunch. He graduated from the University of Southern California in 1954, changed his name to Gehry, and went to Harvard's Graduate School of Design on the GI Bill, then walked away after learning a professor was designing a palace for the Cuban dictator Batista.

He launched Easy Edges furniture out of layered corrugated cardboard, then in the late 1970s wrapped his pink 1920s Santa Monica bungalow in chain-link fencing, plywood, and corrugated steel. Fish shapes crept into his lamps and buildings, and after the 1989 Pritzker Prize his firm borrowed Dassault's CATIA fighter jet software to build the Guggenheim Museum Bilbao, which opened in 1997. The Bilbao effect followed. He later turned to pro bono civic work and kept his fighting edge until his death in December 2025 at 96.

• How alternating the flutes of corrugated cardboard spreads weight across hundreds of tiny arches
• Why Gehry pointed out fish existed 300 million years before humans and asked why architects should stop at the Greeks
• How parametric modeling sent exact steel data to the mills and brought Bilbao in $3 million under its $100 million budget
• Bilbao's estimated $160 million boost in its first year and over $3.5 billion by 2014
• Waiving his fee for the Children's Institute in Watts, co-founding Turnaround Arts, and making a New York tower one foot taller than Donald Trump's

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Long before it became an interior design trend, feng shui began around 4000 BC with the Yangshao and Hongshan cultures of ancient China, who relied on naked eye astronomy. At Banpo, dwelling doors were aligned to the Yingshi star cluster just after the winter solstice, catching the lowest sun for warmth, and a grave at Puyang holds clam shell mosaics of the dragon and tiger star clusters and the Big Dipper on a north-south axis. By the third century BC, Liuren astrolabes with a square earth base and round heaven disk set true north, and after the discovery of the spoon-shaped lodestone those markings moved onto the luopan compass. From the Han through the Ming and Qing dynasties, the Imperial Astronomical Bureau sited capitals and tombs, and builders raised the artificial Jingshan Hill behind the Forbidden City to serve as its protective black tortoise.

Feng shui also worked from the bottom up. Villages in southern China used it to manage shared land, placing graves on high untillable hills away from water and farmland, while masters mediated disputes as neutral parties. In the 1950s, villagers stalled Hong Kong's Shek Pik Reservoir by claiming it would sever the dragon's pulse, and during the Boxer Rebellion rural people tore down foreign railways and telegraph lines. After 1949 it was branded feudal superstition and targeted as one of the Four Olds, yet it returned with economic reform, reaching Hong Kong Disneyland and officials in Gansu province.

• How the five phases of wood, fire, earth, metal, and water work as processes of creation and destruction rather than substances
• Why the form branch's white tiger and black tortoise describe real features like high ground that blocks winter wind and floods
• Disney Imagineering shifting the main gate of Hong Kong Disneyland by 12 degrees in 2005 on a master's advice
• Gansu county officials spending over $700,000 of public funds to move a 369 ton spirit rock
• The 1996 Ozone Disco fire in the Philippines, where inward swinging doors meant to keep money in trapped a crowd and 162 people died

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The Gotthard Base Tunnel runs 57 kilometers beneath the Swiss Alps from the canton of Uri to Ticino, the longest railway tunnel and deepest traffic tunnel in the world, with up to 2.5 kilometers of rock overhead that would bake at 46 degrees Celsius without ventilation. The Gotthard Pass has linked the Rhine and the Po since the 13th century, but in the 1840s a five horse stagecoach took 23 hours to cross, and the 1882 railway needed spiral tunnels to climb. After the 1980 road tunnel brought a tenfold rise in trucks, Swiss voters passed the 1994 Alps Initiative, and a 2000 deal with the EU raised truck limits to 40 tons while a distance and weight fee on heavy trucks helped pay for the 12.2 billion franc tunnel.

Work ran from 1999 to 2016 from up to five sites, including Amsteg, Sedrun, Faido, Erstfeld, and Bodio, removing 28.2 million tons of rock. Four 440 meter boring machines named Sissi, Heidi, Gabi 1, and Gabi 2 cut 25 to 30 meters a day, and gyro theodolites corrected for the mountain's gravity pulling plumb lines sideways, so the tubes met within millimeters. Nine workers died, honored at the June 2016 opening by clergy of four faiths. Zurich to Milan got an hour faster, until August 10, 2023, when a fatigue crack broke a freight wagon wheel, derailing cars at a crossover and wrecking eight kilometers of track until September 2024.

• How orographic lift and the foehn wind can mean snow at one portal and sun 10 degrees warmer 20 minutes later
• Why a flat tunnel at just 549 meters elevation lets one locomotive pull 3,600 tons of freight
• Twin single-track tubes linked every 325 meters and underground multifunction stations for crossovers and evacuation
• A shrine to St. Barbara, patron saint of miners, carved into the tunnel rock
• Measurements showing the mountain surface above the tunnel is subsiding as the Alps adjust to the void

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Big Ben is not the tower but the great bell inside it. After fire destroyed the old Palace of Westminster in October 1834, architect Charles Barry won the rebuild and turned to Augustus Pugin, who designed the Gothic clock tower before his mental collapse and death. Completed in 1859, the 316 foot tower of brick and Anston limestone leans about 20 inches to the northwest on London clay, a tilt worsened by Jubilee Line tunneling in the 1990s. Edmund Beckett Denison and Astronomer Royal George Airy designed a clock with 14 foot copper minute hands, and Denison's unpatented double three-legged gravity escapement kept wind on the hands from disturbing the pendulum.

The first 16 ton bell, cast by John Warner and Sons in 1856, cracked during testing. The 13.5 ton replacement from the Whitechapel Bell Foundry was hauled up the tower over 18 hours and first rang in July 1859, then cracked two months later after Denison used a hammer of about 440 pounds, more than twice the foundry's limit. Workers rotated it an eighth of a turn and fitted a lighter hammer, and the unrepaired crack still shapes its tone. The clock kept running through a 1941 bomb strike, though starlings slowed it in 1949, and a 2017 to 2021 restoration grew from 29 million to nearly 80 million pounds.

• A stack of pre-decimal pennies on the pendulum, each shifting the clock by 0.4 seconds a day
• The Ayrton Light that told Queen Victoria when the Commons sat late, and a prison room where atheist MP Charles Bradlaugh was held in 1880
• Competing origins for the nickname: Sir Benjamin Hall or the boxer Ben Caunt
• Restorers finding asbestos, lead paint, and hidden war damage, and returning the dials from soot black to Prussian blue
• BBC broadcasts since 1923, 96 chimes for Queen Elizabeth II, and how radio and live sound can make noon strike 13

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When Eastern State Penitentiary opened in Philadelphia in 1829, it was the largest and most expensive public structure in the United States and a model copied by more than 300 prisons worldwide. Architect John Haviland designed a hub and spoke plan with seven cell blocks radiating from a central watchtower, hidden behind a neo-Gothic fortress with 30 foot walls. The Pennsylvania system rejected New York's Auburn model of silent group labor and whipping in favor of total solitary confinement meant to produce penitence. Each cell had central heating, a flush toilet, a water tap, a low door that forced inmates to bow, and a single skylight called the eye of God, while prisoners moved under hoods.

The silence broke minds instead of healing them, and inmates tapped messages on the pipes. Guards answered with the iron gag, ice water baths, restraint chairs, and the Klondike punishment cells under Cell Block 14, and writer John Neal condemned it in 1841. Overcrowding, 671 prisoners in a building meant for 560 by 1870, ended solitary confinement by 1913. Leo Callahan went over the wall in 1923 and was never caught, Willie Sutton and 11 others tunneled out in 1945, and Al Capone furnished his 1929 cell with antiques and a radio. After a 1961 riot the prison closed in 1970, and a forest grew inside before it reopened as a preserved ruin.

• Pep the dog, inmate C-2559, actually Governor Gifford Pinchot's gift to boost morale rather than a cat killer serving life
• A 97 foot escape tunnel dug over a year, with dirt flushed down the cell toilets, and 30 other unfinished tunnels found in the 1930s
• How the radial layout that made solitary surveillance easy became a blind-spot nightmare once inmates mingled
• The 1988 task force that stopped plans for a mall or condos, and an audio tour narrated by Steve Buscemi
• Ghost Cats, a Guantanamo cell recreation, Tastykakes thrown from the towers, and the closing Prisons Today exhibit

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Unveiled in May 2003, The World is an artificial archipelago off Dubai of 300 islands shaped like a map of the globe, spanning roughly 6 by 9 kilometers and adding 232 kilometers of shoreline at a cost of about 13 billion Canadian dollars. Dredging began four months later under Dutch firms Van Oord and Boskalis, the builders of Palm Jumeirah, using 321 million cubic meters of sand and 386 million tons of rock. Vibro-compaction probes shook the sand into a stable foundation, and an oval rock breakwater absorbs the Gulf's wave energy. Islands between 1.4 and 4.2 hectares, named for places like France, California, St. Petersburg, and Upernavik in Greenland, sit about 100 meters apart.

By January 2008 the breakwater was finished and 60 percent of the islands were sold, but the financial crisis sent Dubai property prices down 58 percent and by 2012 only Lebanon Island had a show home. Developer Nakheel denied reports of erosion, while Penguin Marine, a transport contractor trying to escape a 1.6 million dollar annual fee, claimed silting in the channels. Buyers had planned an Irish resort with a replica Giant's Causeway and fashion-themed resorts on Finland and Brunei. A 2013 settlement with the Kleindienst Group revived the Heart of Europe, with euro-only shops and a street that rains when it tops 27 degrees Celsius, yet as of May 2025 no underwater power cables had been laid.

• How the breakwater that protects the islands also blocks the tidal flow that would flush sand from the channels
• Richard Branson's 2006 appearance on Great Britain island, which was really a Virgin Atlantic route announcement
• Safi Qurashi's 64 million dollar island, a seven year sentence for bounced checks, and his release on appeal in July 2012
• Dubai residential prices rising nearly 18 percent between 2012 and 2013 and the Anantara and Cote d'Azur Monaco hotels opening in 2022
• Resorts running on diesel generators and barging their waste back to the mainland

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The Great Ziggurat of Ur, called Etemenniguru, the house whose foundation creates terror, was commissioned in the 21st century BC by King Ur-Nammu of the Third Dynasty of Ur as a shrine to the moon god Nanna, near modern Nasiriyah in Dhi Qar province, Iraq. Its footprint measured 64 by 45 meters and it likely stood over 30 meters tall. Builders wrapped a core of sun-dried mud brick in a shell of kiln-fired brick set in bitumen, a flexible waterproof mortar. Ur-Nammu died before it was done, and his son Shulgi finished it during a 48 year reign in which he declared himself a living god, turning the temple complex into a religious, economic, and political center.

About 1,500 years later, Nabonidus, the last Neo-Babylonian king, found only a stump and rebuilt it with seven stages instead of the likely original three, borrowing Ur-Nammu's authority for his own shaky reign. The site then sank into a mound known as Tell el-Muqayyar, the Mound of Pitch. John Taylor's cuneiform cylinders from the 1850s identified it as Ur, and Sir Leonard Woolley's 1922 to 1934 excavation revealed Ur-Nammu's base beneath Nabonidus's layers. In the 1980s Saddam Hussein rebuilt the lower facade and grand staircase, and the 1991 Gulf War left more than 400 bullet holes and four bomb craters nearby.

• Why bitumen, the same substance used on modern highways, kept a mud brick mountain from dissolving in floods
• William Loftus first noting the site in 1850 and preliminary work by Reginald Thompson and Henry Hall
• The joint University of Pennsylvania Museum and British Museum expedition that read two eras in the brickwork
• How to tell the smooth 1980s reconstruction from the rough Neo-Babylonian brick at the top
• The planned Ur Tourist City and Christian pilgrims drawn by the site's link to the patriarch Abraham

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The Potala Palace rises on Marpo Ri, the Red Hill, about 3,700 meters up in the Lhasa Valley, named for Mount Potalaka, home of Avalokiteshvara, the bodhisattva of compassion. In the seventh century the Tibetan emperor Songtsen Gampo kept a meditation cave there, the Chogyal Drupuk, which was absorbed into the later building. After the Mongol leader Gushri Khan gave the Fifth Dalai Lama secular control of Tibet in 1642, the Dalai Lama began the palace in 1645 on a site chosen by his counselor between the Sera and Drepung monasteries. Builders raised 13 stories of inward-sloping dzong walls up to five meters thick in about three years and poured molten copper between the foundation stones to ride out earthquakes.

The interior took 45 years and was finished in 1694, 12 years after the Fifth Dalai Lama died, with Newari metalworkers from Nepal and master artisans creating some 10,000 shrines and 200,000 statues. The White Palace held government and living quarters, the Red Palace the chapels and tombs, and from 1649 to 1959 locals simply called it the Peak. Artillery hit the palace in the 1959 uprising, and Zhou Enlai sent troops to protect it during the Cultural Revolution, though historian Tsering Woeser says it was almost robbed empty. It became a UNESCO site in 1994, and after the 2006 railway to Lhasa, crowds of up to 6,000 a day forced strict quotas.

• How huge bellows-driven kilns reached copper-melting heat in the thin air at 12,000 feet
• Three-dimensional Kalachakra and Yamantaka mandalas built from gilded metal, gems, and wood
• Giant silk thangkas of Tara and Shakyamuni Buddha unrolled down the white southern wall during festivals
• The Chinese character for long life on the Dalai Lama's throne and the diplomacy of Qing dynasty gifts
• A 21 meter height limit on nearby buildings and a rooftop ban as footsteps now threaten the floors