Countless grotesque faces stare out from this eerie Prague art wall.

Increasingly decayed figures stand as a powerful reminder of the human costs of Czech Communism.

Macabre astrological automaton clock dating to the late 1400s.

This monumental neo-Renaissance tomb in Vyšehrad Cemetery is the final resting place for Czech cultural legends.

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

An enormous and lavish Gothic church in Czechia.

The tallest church in Mechelen might have been the tallest in the world if not for a lack of funds.

Inside this former medieval prison is a collection of objects designed to inflict unbelievable pain and suffering on the human body and mind.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

This narrow Ghent alleyway is an officially sanctioned street art tunnel.

These slanted cubic abodes are a creative if odd solution to a zoning pickle.

This fairy tale forest hides scenes from some of the more obscure and bizarre Western nursery stories.

These giant yellow bowling pins seem to be defying gravity.

Dedicated to the American general whose reply to a German demand for surrender was simply "Nuts!"

This 12th-century castle majestically overlooks the city and the beautiful Mosel River valley.

This "floating railway" is one of the world's oldest monorail systems.

This 19th-century fountain features sculptures of little gnomes that help with chores.

This historical Netherlands fortress still bears the marks of its single siege.

This centuries-old gothic monster has been converted into a sprawling, glossy bookstore.

Two gravestones clasp hands over the religious divide.