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

Potato-peeling mannequins, Inca art, and a dangling tuber mobile help trace the history of fries at this Belgian museum.

A fantastical bed and breakfast with magically unique rooms.

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

One of the deepest indoor swimming pools in the world.

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

A rare example of World War I trenches from the British front.

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

Hiding the longest subterranean river known in the world.

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

Cozy basement bar sports an inventory of over 2,000 beers.

Climb inside an iron crystal magnified 165 billion times its normal size.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

Lavish royal estate punctuated with heated greenhouses.

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

The history and future of cannabis.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

A curious collection dedicated to human and animal anatomy and pathology.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

The world's only museum devoted to the wonders of fluorescence.

Amsterdam's Red Light District leaves little to the imagination.

A poignant museum dedicated to the history of the Dutch resistance against Nazi occupation