Between Neo-Pagans and Neo-Nazis, these strange rock formations have a curious cult following and a very strange history.

An intricate and amazing house built by architect Karl Junker.

Slaughterhouse Five opens its dank doors to fans of Kurt Vonnegut.

When the rain falls, this drain system turns into a musical instrument.

The resting place of 18th century German mummies.

Countless stories attempt to explain Poland's mysterious J-shaped trees.

Retirement home for giant obsolete machines.

The natural mummy of the less than chivalrous Knight Kahlbutz.

Explore the complex ecology of this multifaceted nature preserve by riverboat.

An abandoned NSA listening post on Berlin's "Devil's Mountain."

An eerie, derelict amusement park in Berlin.

Incredible labyrinth of man made caves.

Medical history with an amazing, if frighting, collection of wax diseases on display.

Lavish royal estate punctuated with heated greenhouses.

Most prolific publishing house in the 1600s open to the public.

This ghost town in Belgium will lose its street art when it ceases to exist.

A bizarre form of natural mummification was discovered in the church of this Frisian village.

Scale model of St. Peter's Cathedral (Rome) in the middle of a small Dutch town.

A miniature city, once ruled by the Queen of the Netherlands.

Strange secondhand shop showcasing taxidermy and oddies

A former plague hospital turned medical museum.

A curious collection dedicated to human and animal anatomy and pathology.

Colorful and chaotic stacked hotel in North Holland.

A Museum of Psychiatry in a still-operating mental institution.