The remains of the last Gonzaga villa, a luxurious palace built in spite of an economic crisis.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

A great white whale sculpture now sits in the location where the remains of a prehistoric cetacean were found.

An abandoned observatory in the middle of the Illinois prairie.

A small part of Russia that does not touch any other part of Russia.

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

Fifty years after a “blast blasted blubber beyond all believable bounds,” this idyllic natural area commemorates the carnage.

A once grand hotel is being retaken by the wilderness it once capitalized on.

The young girl gained fame for her atypical size and was regarded as a curiosity by the Spanish aristocracy.

Legend says this sacred tree was a gift from goddess Athena.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

It was an experiment to prove that glacial boulders and rocks can be used in constructions and dwelling.

What do we know about the real woman behind one of the Beatles' most famous songs?

A legal loophole makes it possible to get away with murder within this 50-square-mile section of Yellowstone.

Anna Anderson spent most of her life claiming to be the lost Romanov child Anastasia.

This bunker in northern France was built by Nazi German forces with the intention of launching up to 50 V2 rockets at London each day.

The biggest and deepest Cold War bunker open to the public can be found in southeast England.

This East German military command bunker was ready for World War III.

In the land of the Light Brigade stands a testament to the Cold War.

A Cold War command center is hidden under an idyllic countryside.

This top-secret nuclear bunker hidden in a Bosnian mountain has been converted to a modern art exhibition space.

These former Cold War launch sites have been preserved for tourists to see where the button might have been pushed.

Dr. Strangelove-esque tours reveal the inside a bunker once reserved for Stalin himself.

A former top secret nuclear fallout shelter now operates like a hotel stuck in the Cold War.