Most prolific publishing house in the 1600s open to the public.

An open-air sewer system that was covered piece-by-piece over 300 years.

This modern arts center is built around a gem of late-Baroque architecture.

A mural recalls a fictional woman who once lived at 23 Quai du Commerce, 1080 Brussels.

Intricate metal sculpture that's half gothic cathedral, half construction equipment.

This non-profit theatre in the heart of Brussels is dedicated to hosting independent films.

When you're a great Russian Tsar, even your vomit gets a statue.

This huge limestone slab is considered the largest paving stone in Belgium and a relic of the earliest modern paving in Brussels.

One of the oldest bank museums in Europe showcases unusual currencies of the world and other money-related miscellanea.

From Tintin to the Smurfs, Europe's greatest graphic icons are celebrated in a grand Art Noveau gallery.

This cannonball has been lodged in the church wall since a 1695 bombardment destroyed the city center.

Theme park featuring miniature replicas of European monuments.

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

Belgium's national heroine turned spy sacrificed her life to combat German occupation.

Known as "The Spewer," this bizarre fountain has an even stranger urban legend behind it.

A largely overlooked statue that may commemorate the first publication of 'Don Quixote' outside of Spain.

This enormous sports car themed amusement park is home to the world’s fastest roller coaster.

This indoor ski resort has a mountain contained inside a mall.

Once a luxurious flagship of the Soviet Union, this Brutalist structure remains a landmark of Tashkent’s communist past.

An underground world of gorgeous, palatial metro stations designed as a nuclear shelter complex.

Prowl through this sprawling bazaar under a massive Soviet-era dome for delicious eats.

Where Stoddart and Connolly suffered in the infamous Bug Pit.

This "tower of death" has acted as an observatory, a religious hub, and an executioner's lair.

The world's second-tallest flagpole stands proud despite dropping rank.