This pirate-broadcasting-tower-turned-restaurant played a rebellious role in the history of Dutch television.

This beautifully designed star-shaped fort was the premier defense system of the late 1500s.

Colorful and chaotic stacked hotel in North Holland.

A beautiful maze marks where three countries meet.

This small town in the Netherlands has no roads but instead, miles of canals and over 100 bridges.

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

This recently restored crypt was once plagued by liquefying coffins and exploding caskets.

A beer pipeline runs beneath Bruges.

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

An early 20th-century sanatorium, long abandoned and now being reclaimed by nature.

Also known as Napoleon's Canal, this waterway was created on the orders of the general, and construction was interrupted by Waterloo.

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

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

This abandoned Belgian fortress is purposefully being left to nature.

A Cold War command center is hidden under an idyllic countryside.

This old, abandoned hotel offers magnificent views.

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

Abandoned since 1998, this train station has become an oasis for urban explorers.

This Belgian theme park began as a refuge for bored church children and was closed down when a boy lost an arm.

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

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