Follow the dramatic story behind the building of the Colosseum in Ancient Rome. The Romans used innovative technology that we still use today, but the money ... read more
The Great Pyramid of Giza is four-and-half thousand years old. It's the only ancient Wonder of the World still standing. It was conceived as a resurrection m... read more
St. Paul's Cathedral
From the ashes of London's Great Fire in 1666 rises Christopher Wren's daring architectural vision. As England's first Baroque cathedra... read more
The Alhambra is the greatest example of Islamic military architecture in Europe. Sultan Muhammad I constructed this ingenious, impregnable fortress in 1238 a... read more
Carved into the side of a narrow gorge in the unforgiving deserts of Petra in modern day Jordan, the ancient Nabataeans turned engineering on its head to cre... read more
Machu Picchu
Built using techniques that surpass modern ones, the temples, altars and residences of Machu Picchu have resisted torrential rains, landslides ... read more
Hidden deep in Cambodia's jungles, the temple of Angkor Wat is a towering monument to the Hindu god Vishnu, belying its origins as the mausoleum for a usurpe... read more
Istanbul's Hagia Sophia
Fiery Roman Emperor Justinian ordered the rebuilding of the great church of Hagia Sophia in Istanbul almost 1500 years ago. Modern s... read more