This memorial museum chronicles the apocalyptic destruction of the First World War.

Because sometimes you need to make a batch of frites even when the stores are all closed.

Ancient man-made caves underneath small town Belgium.

In the shadow of a former battleground, the resting place for nearly 2,000 soldiers who died in World War I.

A moving memorial to the fallen and missing from WWI trenches.

This bike path traverses the treetops.

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

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

The site where one of the most famous poems of World War I was composed is preserved to honor the legacy of the work.

Somewhere there is a giant who can no longer poop, but now travelers can stay inside his anus.

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

In an area where the remnants of WWI are discovered on a regular basis this preserved frontline trench may be the most amazing.

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.

A Belgian self-built tower inspired by the Bible and ancient civilizations.

Hiding the longest subterranean river known in the world.

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