A once-magnificent collegiate church is falling into ruin.

This gruesome biblical parade celebrates the one day a year that a bit of Jesus' blood turns to liquid.

Christ's blood allegedly preserved in a Belgian town.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

Amsterdam's former hotspot for public executions and dissections.

A grassy pyramid named after a French battle.

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

A 1:20 scale piece of the Netherlands commissioned by a queen lets visitors take a stroll as giants.

These slanted cubic abodes are a creative if odd solution to a zoning pickle.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

Descend into the tunnels to experience the life of a coal miner.

This giant urban staircase was built to keep the city's brave fighting men from getting waylaid in the red light district.

This sprawling Belgian fort was once thought of as impenetrable but now it is simply an abandoned relic.

A UFO-shaped event building originally intended to be a science museum showcasing the future.

Scale model of St. Peter's Cathedral (Rome) in the middle of a small Dutch town.

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.

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

A maze of crosses marks the jumbled divide between the Netherlands and Belgium.

A little sculpture with a large wardrobe.

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

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

Brussels' favorite peeing boy has a sister.

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