Join Stacy Keach as he investigates the world's most intriguing lost cities, bizarre formations, and sacred sites. This series features all original footage, filmed on location throughout the world.
One of the world's most bizarre structures, this 1100-ton "castle" was sculpted out of coral rock, allegedly by just one man. Who was he, and how did he build on such a grand scale?
S1E29 22 min