Launched by Napoleon's soldiers more than 200 years ago, a cannonball remains embedded in the tower wall.

In an area known in Bratislava’s postal history, this sculpture sits equipped with a functional postbox.

The largest fountain in Bratislava.

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

This massive underground salt mine now holds a sci-fi theme park in its depths.

A shining memorial to a Belgian hero is said to bring luck to anyone who touches it.

Belgium’s famous peeing statue has worn many hats (and coats, and pants), which are on display at this small museum.

Tintin's creator is celebrated in an immersive museum that's an astounding work of modern art.

This former coal mine, now a fascinating museum, was the site of Belgium's worst mining disaster.

The tiny Belgian town's ancient version of Mardi Gras involves eerie wax masks, sticks for warding off evil, and ostrich plume hats.

Housing the groundbreaking maps and globes of Gerard Mercator.

The Belgian library displays burned books that were salvaged from the fires of both world wars.

A charming beach town in Turkey captures all the colors of the rainbow.

A small town Romanian cemetery filled with darkly humorous gravestones.

A memorial museum to the political prisoners who were held at Sighet Prison, once one of the most feared places in Romania.

A sublime medieval path adorns the marble floor of one of the most beautiful Gothic cathedrals in France.

The Devil’s own choice when he needs a drink in Brussels.

A fantastical 13th-century fortification sandwiched by a modern hotel in central Brussels.

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

Head underground and take a tour of the city's working sewer system, and see the underground river Senne, which defined Brussels for centuries before being covered in the 19th century.

Only museum in the world devoted to bookbinding and book arts holds a permanent collection representing five centuries.

The world's largest boar is a huge steel titan found at a French rest stop.

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

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