One of the largest squares in Europe contains an entire artificial island.

This off-beat, quirky communism-themed bar isn't afraid to poke fun at its history.

The mummified right fist of a 1,000-year-old saint-king sits inside an ornate golden reliquary.

A Hungarian pharmacy museum with a box full of mummy powder.

The costumes depict the Kurent, the star character of the annual Kurentovanje festival.

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

A miniature train-ride through Slovenia's largest cave system.

Unscathed for almost 2,000 years, the best preserved Roman triumphal arch is in a small southern Italian city.

Next to the Leaning Tower of Pisa is a cemetery home to ancient sarcophagi and disturbing murals.

This artificial cave looks like something out of a fairytale.

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

Throughout this shopping mall are medieval ruins that were discovered during the mall's construction.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

A turn of the century building boasting some of the most beautiful art nouveau architecture in Prague.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Macabre astrological automaton clock dating to the late 1400s.

142 ceramic steps become a mosaic once a year.

A natural arch carved by a river gave its name to the so-called "Cave of Forgotten Dreams."

One of the largest ochre quarries in the world, hidden in a limestone landscape.

This abandoned Slovenian military barracks has become a punky-political art squat.

A public work of art that also provides some relief from the summer heat.

A whimsical bridge adorned with decorative dragons.