The Three Gorges Dam was built on the Yangtze River and is known as the most powerful dam by hydroelectric capacity to date.

Researchers found seven stars in our galaxy that might host alien megastructures called Dyson spheres. But these stars' strange behavior could also be explained by other phenomena, like clouds of dust ...

'National Geographic Channel MegaStructures' takes a look at the construction history of Boston Big Dig project. Costing almost 15 billion dollars and taking almost 20 yrs to complete, the Boston's ...

We peel back the layers of the great church of Hagia Sophia in Istanbul to reveal its incredible engineering secrets, and vividly bring to life the astonishing story of its construction. We peel back ...

This program brings to life the ingenious engineering solutions and treacherous political betrayals that gave birth to what is arguably the most perfect example of Moorish architecture in existence - ...