Baudette, United States. The Automotive Enviro Testing Company Test Site is a cold weather automotive testing facility in Baudette, a small town located on the international boundary with Canada, and near the middle of the continent.

Mobile, United States. The Austal Shipyard in Mobile, Alabama, makes large ferries and specialty military ships, especially fast catamaran and tri-hull type vessels.

San Juan Hill, United States. A windowless office that housed microwave links and switching equipment.

Charlottesville, United States. In 1793, James Monroe, who later became the fifth president of the United States, and his wife purchased 1,000 acres next to Thomas Jefferson’s place, Monticello, and eventually amassed a 3,500-acre plantation called Highland.

Houlton, United States. Built on the boundary with Canada, the Aroostook Valley golf course is a truly international “country club.”

Muroc (historical), United States. The Armstrong Flight Research Center is NASA's primary atmospheric flight research and test facility. It is located on Edwards Air Force Base.

East Arlington (historical), United States. At 612 acres, and over 400,000 occupants, this is the nation's largest cemetery in terms of internments.

Baker Creek (historical), United States. Arkansas's only nuclear power plant is located in London, Arkansas, adjacent to Lake Dardanelle, from which it draws its cooling water.

Central City, United States. Now a national historic site, this mill operated from 1913 to 1943, processing ore brought via the 22,000 foot Argo Tunnel. At the time it was built, it was the largest mill of its type in the world.

Utuado, Puerto Rico. Arecibo Observatory is a unique radio telescope is a 1000 foot wide dish, with 38,700 perforated aluminum panels set in a suspended mesh of wires, a few feet above the ground over an old karst sinkhole.