01. Secrets of the Acropolis
The Acropolis has overlooked Athens for thousands of years. Now scientists aim to reveal how it was built, what it looked like, and how it's still standing.
02. Secrets of the Maya Pyramid
In Mexico, the lost city of Chichen Itza holds ancient secrets of a strange civilisation. How was it was built and how did human sacrifice shape it?
03. Medieval Cathedral mysteries
A medieval engineering marvel may house the remains of the Bible's Three Magi. Scientists and experts delve into the mysteries of this religious site.
04. Secrets of Westminster Palace
Westminster Palace is one of the most iconic structures on the planet. What Victorian secrets and mysteries are hiding behind this famous landmark?
05. Secrets of the Pyramids
The Great Pyramid of Giza is one of the last surviving monuments of the ancient world. Scientists and archaeologists unlock the secrets of its construction.
06. Great Wall of China
The biggest man-made structure on Earth, the Great Wall of China, is one of its biggest mysteries. What are the secrets of one of history's greatest empires?