Built millenia ago as an Eyptian pharaoh's tomb, the Pyramid of Khufu at Giza has a reputation for greatness. Find out why this reputation is deserved -- and who really built Khufu's pyramid -- in this episode.

Every winter, whooper swans migrate across a wide geographic range, roosting in places as far-flung as Hokkaido, Japan. Learn more about these noisy, migratory birds in this episode.

Easter Island is a tiny, volcanic island in the Pacific Ocean with a mysterious history -- and some really big statues. Learn more about the massive moai of Easter Island in this episode.

Once the imperial capital of Japan, Kyoto is a modern city with an old soul. Join Matt and Rachel as they explore the temples, shrines and traditions of Old Kyoto in this episode.

Southeast Alaska, also known as the Alaska Panhandle, is a favorite haunt of humpback whales and massive, shifting glaciers. See both in action in this episode of The Coolest Stuff on the Planet.

Often referred to as the Great Wall, China's Long Wall was originally constructed to keep out invaders from the North. Take a tour of the world's most famous wall -- and learn some surprising trivia along the way -- in this episode.

Due to a large population of camels in the region, camel racing is a strange and popular sport in Australia's outback. Get a front row seat at one of Australia's most famous camel racing events -- the Camel Cup -- in this episode.

Karnak is a sprawling, ruined temple complex near Luxor, Egypt that was built over a period of more than 1,500 years. Take a tour of Karnak's main temple -- and learn some fascinating trivia along the way -- in this episode.

The lovely city of Venice has many nicknames, from La Serenissima (the most serene) to the Queen of the Adriatic. Take a virtual tour of Italy's famous "floating city" -- and learn some fascinating trivia along the way -- in this episode.

The Pacific Northwest is home to large communities of orcas, particularly British Columbia and the area around Vancouver Island. Learn more about these killer whales (that aren't whales at all) in this episode.