Tables of secondhand books fill the inner courtyard of this 17th-century stock exchange.

This triumphal arch celebrating the Sun King's conquest of Lille is a masterpiece of military architecture.

A garden of flying flowers.

Inside this former medieval prison is a collection of objects designed to inflict unbelievable pain and suffering on the human body and mind.

This former Masonic lodge has been transformed into part museum, part bar, all awesome.

This abandoned Belgian fortress is purposefully being left to nature.

A once-magnificent collegiate church is falling into ruin.

A museum celebrating the Canadian forces that liberated Belgium from the Nazis replete with battlefield miniatures and multiple Gardens.

This bike path was sunk below water level for maximum wonder.

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

A pilgrimage site where people ask Saint Dymphna to watch over those who are not of sound mind.

A Museum of Psychiatry in a still-operating mental institution.

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

The vast chamber inside this abandoned cooling tower looks like something out of a sci-fi dystopia.

One of Belgium's oldest hospitals saw patients from the 13th to 20th centuries before becoming a museum.

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

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

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

Each spring, a dreamlike carpet of bluebells overtakes the forest floor.

Nature is slowly overtaking this disused cemetery on the outskirts of Brussels.

Each time a baby is born in Ghent, these streetlights flash in silent celebration.

This narrow Ghent alleyway is an officially sanctioned street art tunnel.

One of the deepest indoor swimming pools in the world.

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