Rent out a glass igloo to watch the Northern Lights like you live in the future.

The walls and ceiling of this Polish church are decorated with thousands of skulls, with another 21,000 skeletons just below.

This morbid, delightful curiosity shop offers everything from animal bones to human teeth.

A sprawling Baroque park with 300-year-old hydro-pneumatic waterworks.

This volcanic cave lake is essentially hard proof that Iceland is the most magical place on Earth.

Natural time capsule containing an alien ecosystem.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

Two stunning 17th-century libraries and a cabinet of curiosities.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

The macabre collection of Jacques Sirgent, an expert scholar on the undead and all of their trappings.

A collection of decorative eggs to admire in the off-season.

A steam powered train that runs on city streets.

1898 German railroad depot museum with working engines, steam train excursions, and hands-on displays.

Money made from smuggling sugar helped create this wondrous rock maze in honor of the Prussian Queen Louise.

This extremely narrow tenement boasts a maximum occupancy of just two.

This ancient ruined monastery has been destroyed by fire so many times that it seems like God hates it.

The largest treasure hoard in Europe is contained in a castle that was bombed out during World War II.

A unique hanging cable-car navigates through Dresden, the oldest suspension railway in the world.

This German bone house contains the remains of some 20,000 souls.

The resting place of 18th century German mummies.

These 18th century gardens tell a rocky story of the son of Odysseus.

A striking 12th-century-style castle built on the edge of a cliff.

Among the ostentatious rococo ornamentation of this church, an image of death cuts the life-thread.

An elevator into the Baltic Sea.