A small town Romanian cemetery filled with darkly humorous gravestones.

A muddy alien landscape that is home to rare species of exotic plants.

Gigantic Romanian salt mines used to heal respiratory conditions.

The world's oldest known salt mine.

Dress up like a miner and take a slide into the disco-lit depths of this once foundational salt mine.

In a small churchyard in Dingolfing, Germany the quaint Schusterkapelle is there to remind you of your imminent mortality.

Mozart's skull may be held in this collection, but definitive proof continues to elude scientists.

The 1936 Summer Olympics site is a crumbling remnant of sportsmanship and a history its host country would like to forget.

Stroll through retro Paris while shopping for old postcards and discarded doll heads.

A hospital where antique dolls are given new life.

Underneath this small church are 15,000 bones, arranged by an obsessive academic.

The prototype for all Nazi concentration camps.

Buried five stories underground, this Soviet bunker is packed with gas masks and Cold War paraphernalia.

The topiary maze at the Habsburg hunting lodge.

Located right outside of Vienna, visitors can take in expansive views of an ethereal forest.

"World machine" built by an untrained Austrian farmer.

When a medieval fire claimed the original St. Stephen’s Cathedral, it sparked a pattern of unquenchable organ building.

The world's largest historic armory was established by independent citizens to defend themselves from the wars of larger forces.

Fantastic stories on a miniature railroad.

Each year melting snow turns these Austrian hiking trails into scuba zones.

A church of bones, decorated with 40,000 human skeletons.

The personal charnel house of Anton Bruckner.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

The beautiful baroque library of the Hapsburg empire.