A small town Romanian cemetery filled with darkly humorous gravestones.

A spooky spot along the road where things mysteriously seem to move uphill by themselves.

This massive underground salt mine now holds a sci-fi theme park in its depths.

Conspiracy theories and occult legends surround this mysterious natural rock formation.

Something's watching you.

A stunning 18th century pharmacy and medieval chemist's collection.

Even drowned in an ocean of toxic waste, the remnants of this Romanian village stand tall.

This bone-filled cave got its name after they found 140 bear skeletons inside.

Romania's "Red Ravine" is a little-known natural wonder that bears a resemblance to the Grand Canyon.

This fairy-tale castle would make Dracula (who is said to have been imprisoned there) jealous.

One of the oldest churches in Romania is believed to have been built on the site of a pagan temple.

The romantic botanic tunnel feels like a well-kept secret.

Stone age urban planning.

An eerie, protected forest of old-growth oak trees, many of which are now dead.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

The hallucinogenic center of the ancient world.

Monasteries on rock pillars, once accessible only by frayed ropes.

The grandest stage for the world's foremost masters of invisible instruments.

A cathedral resurrected from the ashes of one of Europe's greatest urban fires.

A subterranean house of worship carved right out of the bedrock.

An alien church provides much needed silence in the midst of a Finland shopping center.

Abandoned Soviet base once stocked with short and medium range missiles pointed at western Europe.

Mysterious craters may have been home to an ancient cult.

This disappearing geyser has been attributed to witchcraft, but really it's all about rainfall.