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

The world's tallest boat lift stands as a massive piece of industrial tourism.

Stocking up on the world's best beer requires a pilgrimage to a monastery drive-through.

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

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

A visionary precursor to the Internet made of index cards.

This statue dedicated to the story of a Flemish boy and his dog was relatively obscure in Belgium, but a cult sensation in Japan.

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

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

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

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

The last bastion of Roman presence north of the Alps looms over a German town.

The birthplace of Karl Marx is now a museum dedicated to the communist revolutionary's life and work.

Go surfing on this urban wave, "hacked" by local surfers.

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.

These bronze pamphlets remember a remarkable group of Germans who fearlessly opposed the Nazis in the very center of their power.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

This poignant tribute to the White Rose movement showcases artifacts related to the heroic anti-Nazi struggle.

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

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

King Ludwig I's collection of beautiful women.

The prototype for all Nazi concentration camps.

The stones of this formerly witch-obsessed castle were used to build a church.

A small but immensely extravagant palace built by the "Night King."