Secrets of the Great Wall traces the history of the Great Wall of China and the numerous walls that preceded the one that stands today. It also discusses Emperor China's famous terra-cotta army and visits some remnants of earlier walls, urging preservation of today's Great Wall. This program incorporates a number of fictional film clips to illustrate points about the Emperor, the Forbidden City and the Mongol hordes; the clips liven up the proceedings a bit, but are a bit jarring on first appearance.

In The Lost Temples of India, historians and others examine temples built in India more than 1,000 years ago. They remain quite intriguing, though today's tourists rarely visit them. Records reveal that trained elephants had to drag millions of stone blocks to help erect these structures. The program notes that due to the temples' size, the U.S. Senate, Versailles, the Houses of Parliament, and St. Paul's Basilica in Rome could all fit within a single one of them. Michael Bell narrates as footage and animated maps are used to help viewers learn more about what these ancient structures look like and why they were built.