The world's largest collection of intentionally useless inventions.

This series of underground chambers contains Europe's largest subterranean lake that is slowly drained each day.

The resting place for anonymous victims of the Danube's dark waters.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

This former insane asylum now holds a pathological anatomy museum.

Macabre museum devoted to historical Viennese murders.

A patriotic medieval knight in driven-nail armor raised money for widows and orphans of WWI.

Beautiful Austrian natural history museum with carved ceilings and row after row of ancient taxidermy.

Handsomely crafted representations of our round planet.

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.

Legends surround an ancient tree trunk riddled with nails for good luck.

There's nothing creepier than a cemetery next to a clown motel.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Oh, just a motel on the edge of the desert decorated with thousands of clowns conveniently located next to an abandoned graveyard.

A modern day curiosity cabinet.

Stalactites and stalagmites in a beautifully lit cave.

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

An underwater city for the dead.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

The site of the climactic scene from the classic horror film is now a historic landmark.

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

Museum preserving torture methods from the past.

A rare view of a preserved Victorian science museum.