Pilgrimage site for star-crossed lovers.

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

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

This Croatian fairytale castle is slowly falling apart thanks to years of neglect.

This tile-work piece featuring a chicken riding in carriage is both a remarkable artistic creation and a social commentary of politics and culture in 17th-century Portugal.

This once-forgotten oasis in the middle of Lisbon was first created over a century ago quite by accident.

The unusual sculptures are believed to be powerful political symbols.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

Debatably clever, or just plain honest hotel advertised as "The Worst Hotel in the World."

Museum preserving torture methods from the past.

Brussels' favorite peeing boy has a sister.

Meet the bronze beloved pet to a family of famous peeing statues.

A little sculpture with a large wardrobe.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

Climb inside an iron crystal magnified 165 billion times its normal size.

Stockholm's narrowest alley is barely over two feet wide.

A statue of Paulina Hermann, the eccentric noblewoman known as the "mother of cats."

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

An underground city of salt.

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

A whimsical bridge adorned with decorative dragons.

Martin Bricelj Baraga's monolithic sculpture measures the blueness of the sky, and changes color to match it.

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

This one-time health resort was used by aristocrats around the world.