Provides information about Machu Picchu, including such facts as the lack of an Incan writing system and that the whole structure was built without mortar.

First published in the 1950s, this is a classic account of the discovery in 1911 of the lost city of Machu Picchu. In 1911 Hiram Bingham, a pre-historian with a

Discusses twenty interesting facts about the history of the Colosseum.

Discusses interesting facts about the history of the Great Pyramid of Giza, Egypt.

Presents facts, photographs and information on the Great Wall of China.