For those who like questions better than answers.

Science Channel

Experts use the latest technology to investigate the world's oldest sunken city, and their new discoveries are revealing the dark secrets of a strange world mysteriously lost to the ocean almost 4,000 years ago.

Secrets of the Lost

Forbidden City of the Deep

One of the first pyramids in ancient Egypt is also one of the mysterious, and new discoveries reveal the secrets of the catastrophe that might have given this strange marvel its twisted and eerie appearance.

Egypt's Pyramid From Hell

The Nazca Lines are the mysterious wonders of a long-gone civilization, and today, experts are using cutting-edge technology to investigate the secrets of the mummies and treasures found in these bizarre ruins to finally reveal their true purpose.

Legend of the Nazca Lines

Experts use the latest technology to reveal how a primitive civilization built one of the world's greatest structures, Stonehenge.

Stonehenge: The Forbidden History

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A series of incredible new discoveries helps unlock the deepest secrets of ancient mysteries; using cutting-edge CGI technology, viewers experience the inner depths of ancient constructions to understand how and why they were built.

S3 E12 | Forbidden City of the Deep

E12 | Forbidden City of the Deep

E10 | Egypt's Pyramid From Hell

E5 | Legend of the Nazca Lines

E1 | Stonehenge: The Forbidden History