One of the oldest medical collections in Europe focusing on rare surgical instruments.

This 18th-century sundial was designed to calculate the date of Easter each year.

The video game-themed street art first popped up in the French city.

A massive, gleaming sea turtle with a rider atop its shell looks out over the horizon.

This museum is housed in an unassuming building that witnessed one of the most daring feats of satire in modern history.

Take a leisurely walk through the park to find the seven giant troll sculptures hidden throughout the park.

What was once a bustling mining installation is now a bustling hub of contemporary art.

A giant bug impaled on a 75-foot-tall needle.

A collection of weird and wonderful art fills a former houseplant nursery.

Rare wooden escalators lead deep down into an otherwise staggeringly monotonous tiled tunnel.

Artwork tucked within the trees greets visitors with surreal sonic experiences.

A fantastical bed and breakfast with magically unique rooms.

A Belgian self-built tower inspired by the Bible and ancient civilizations.

Hiding the longest subterranean river known in the world.

A magical and peaceful ruined Cistercian abbey in what is now southern Belgium.

Part modern art project, part traditional chapel, this see-through church is only substantial from the right angle.

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

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

This charming, hidden guild museum holds some 700 years of crossbow history.

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.

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

One of the deepest indoor swimming pools in the world.

Remnants of a cone-shaped Nazi bomb shelter.

This floating sculpture of ice is a poignant reminder of nature's power.