A 14th century bridge built as a fortress, where the devil lurks on one of its towers.

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

The sanctuary holds what was once believed to be the saint's incorruptible tongue.

An enormous and lavish Gothic church in Czechia.

Europe's largest natural bridge has a 19th century royal chateau built into its side.

Macabre astrological automaton clock dating to the late 1400s.

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

A little sculpture with a large wardrobe.

Too much gossip or just missing curfew could land you in here for a couple of days.

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.

A stunning hermit's shrine on a steep rocky spur in Northern Italy.

Oriental bazaar in the heart of Sarajevo.

Bridge that died in war and was resurected.

The site of Austria's biggest concentration camp now honors its victims.

The medieval "dragon" on an Austrian city's coat-of-arms comes to life in a fountain.

Bizarrely-painted church designed by a controversial artist.

The world's most important buildings shrunk to a tiny size.

Austria's ultra-modern art museum looks like Cthulhu's giant alien heart.

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

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

Swarovski's museum/theme park is a fake diamond fantasia overlooked by a giant.

The Renaissance-era courthouse is a relic from the fortified town's centuries of Venetian rule.

Croatia's towering concrete blossom grows from the site of a World War II concentration camp.

Island wonderland for communist autocrats.