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

This collection of solar timekeepers includes the world's first digital sundial.

The Belgian library displays burned books that were salvaged from the fires of both world wars.

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

Housing the groundbreaking maps and globes of Gerard Mercator.

This whimsical statue dumps water on its head to symbolize knowledge flowing into his brain. Or maybe booze.

A once-magnificent collegiate church is falling into ruin.

This bike path traverses the treetops.

The "stairway to heaven" lookout tower was built to resist weather, arson, and the laws of physics.

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

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

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

A 14th-century fortified keep showcases the masterpieces of an ingenious 20th-century clockmaker.

Christ's blood preserved in a Belgian town.

A fantastical bed and breakfast with magically unique rooms.

Hiding the longest subterranean river known in the world.

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

This ghost town in Belgium will lose its street art when it ceases to exist.

Only museum in the world devoted to bookbinding and book arts holds a permanent collection representing five centuries.

Lavish royal estate punctuated with heated greenhouses.

Dummies recreate radiological discoveries from history.

A shining memorial to a Belgian hero is said to bring luck to anyone who touches it.

A bronze statue of the fictional character nicknamed "Mrs. Hat" from a beloved Belgian comedy.

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