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Crumbling Ancient Monastery

Related Article: How the Papacy Works

Watch this video about monasteries on HowStuffWorks. Kiev's Monastery of the Caves is one of four Unesco World Heritage sites in Ukraine. A grand complex with striking bell-towers, resplendent churches, chapels, gates, monuments and seminary buildings, it was founded by monks near the Dnieper River in 1051 and grew to become the main sacred site of Orthodox Christianity in eastern Europe.

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How Green Building Works (1:33)

Builders are learning a variety of environmentally friendly building techniques. Learn more about green building in this HowStuffWorks video.

Toilet House in South Korea (1:13)

Watch this video about a South Korean home that's being built to look like a giant toilet. The house is being built by the Korean Toilet Association and guests can stay here for $50,000 a night. Even the inside looks like a toilet bowl. The house... More »

Rotating Building (1:42)

Watch this Reuters video to see plans for a new rotating building in Dubai and Moscow. Each of the planned 80 floors will independently rotate 360 degrees. Prices per floor start at $3,000 per square foot. But what a view you will have.

French Scientists Explain How Great Pyramids Were Built (1:28)

Watch this video about the Great Pyramids on HowStuffWorks. The Great Pyramids in Egypt have fascinated visitors since they were constructed 4,500 years ago. A French architect now claims the structure was build from the inside, rather than from the... More »

Mexico City Builds Beach Downtown (0:40)

Watch this video about man-made beaches on HowStuffWorks. To help curb the summer heat, Mexico City officials constructed a man-made beach, complete with sand and a water park. See how beaches and water parks work in this news video from Reuters.

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Energy Policy: Green Building (1:35)

Senator Hillary Clinton describes a plug-in hybrid capable of getting 1500 miles per galloon, and proposes creating a green building fund. Learn more about green building in this video.

Invention Nation: Cheap Homes (2:08)

Take a look at these super-efficient homes, which cost nothing to heat or cool. Learn more about green building in this video.

City Sewer (0:48)

From the Archives of Discovery: Watch as sewer workers descend into the city sewer. Learn more about sewers in this video.

Wind Tunnel in Reverse (1:36)

From the archives of Discovery: Wind tunnels are used to study a wide range of situations, including the composition of gasses and the durability of certain products.

Industrial Machinery (1:36)

From the archives of Discovery: Hydroelectric power uses the energy of water to create electricity. Learn more about hydroelectric power in this video .

Hydroelectric Power (1:42)

From the archives of Discovery: Hydroelectric power uses the energy of water to create electricity. Learn more about hydroelectric power in this video.

Wind Tunnel Vortex (1:45)

From the archives of Discovery: Researchers use wind tunnels to study a wide range of subjects, including the composition of gasses and the durability of certain products.

How the World's Tallest Building Works (2:00)

Once completed, the Burj Dubai will become the world's tallest building. Learn more about the world's tallest building in this HowStuffWorks video

How Green Building Works (1:33)

Builders are learning a variety of environmentally friendly building techniques. Learn more about green building in this HowStuffWorks video.