This 13th century Gothic brick castle is the largest in the world by surface area.

Two stone columns flank the grand Venice square, but there were supposed to be three.

Nicolas Schöffer's massive interactive sculpture was assembled in 1961 and brought back online in 2016.

Medical history with an amazing, if frighting, collection of wax diseases on display.

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

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

Three floors of musical instruments coming from all corners of the world and hundreds of years of musical history.

The Belgian royal family's private depot now stands abandoned and forgotten alongside the tracks.

A huge old mansion full of thousands of toys, each there to be used and played with.

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.

Brussels' favorite peeing boy has a sister.

A little sculpture with a large wardrobe.

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

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.

This interactive sculpture allows visitors to leave a message in case a friend passes by.

This heavily worn bas-relief was once an honored fertility symbol.

This legendary giant, born from vegetables, terrorized townspeople and cheated local children in games.

The legendary giant's severed hand sits on Antwerp's popular shopping street.

This small corner bar is home to a rare 1930s dance organ that still plays tunes for one Euro.

A man throwing a giant severed hand towers over Antwerp’s main square.

This statue dedicated to the story of a Flemish boy and his dog was relatively obscure in Belgium, but a cult sensation in Japan.

The patron of this extravagant Art Nouveau confection insisted that nothing less than a boat should project from its facade.

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