Also known as Uncle Karl, the beloved bronze copper keeps a watchful eye on St. Stephen’s Basilica while people rub his lucky belly.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

2300-year-old Roman road connecting the empire.

This beautiful park on the outskirts of Rome protects the ruins of two colossal ancient aqueducts.

A silly medieval mural preserved on the side of a Viennese house.

The solemn exterior conceals an opulent interior of this 17th century church.

An exquisite Baroque church in Vienna's old town.

Vienna's diversity-themed traffic lights were inspired by the Eurovision Song Contest.

A controversial “crumpet”-shaped museum tries its best to blend in with surrounding parkland.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

Electrical curiosity museum housed in an old transformer station.

Looming communist pillar with a Czech twist.

Straight out of a nightmare, barcode-faced babies climb up and down Prague's television tower.

A historic and beautiful Art Nouveau chamber in a historic railway station.

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

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

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

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

The oldest garden in Prague, once part of an medieval orchard.

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

This walkway is so narrow it needs its own light to stop pedestrian traffic jams.

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

A surreal statue honoring Prague's favorite literary son.