This captivating Bronze Age timber circle spent centuries concealed by the tides.

A strange and ancient landscape hides the dark, cavernous remains of a 5,000-year-old flint mine.

Does being buried standing up help you get into heaven faster?

This medieval castle is filled with an eccentric collection that ranges from ancient Egyptian artifacts to taxidermy to a mummified hand that was cut off during a duel.

This unusual 7th-century Frankish seal offers more questions than answers about its past.

One of the oldest bridges in Norwich was used during the English witch trials and is said to be haunted.

A 16th-century footpath said to be haunted by a young girl that died trapped within its misshapen old house.

This imprint of an old computer keyboard has a unique backstory.

The walls and streets of the ancient city are peppered with penises.

Pompeii's less famous neighbor is still revealing her secrets.

Erotic art covers the walls of the largest ancient pleasure palace.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

Gods clash with machines in a power plant regenerated as a museum.

This large, circular tomb is the final resting place of the first emperor of Rome.

The remains of this 2nd-century Roman temple are incorporated into a modern building.

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

This ancient market is often referred to as the oldest shopping mall in the world.

Legend has it that this bronze orb, which sat atop an ancient Egyptian obelisk, once held the ashes of Julius Caesar.

Architectural monsters are devouring this palace's every door and window.

The ruins of the largest gladiatorial school in Rome are largely hidden under modern streets.

A Nesting Doll of Churches.

The engineering wonder and pleasure dome of a much-maligned emperor still holds undiscovered secrets.