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

Hidden on the urban banks of a Manchester river are a series of abandoned waterside industrial sites.

This conical hill was built as a testing ground for an engineer known as the Glider King.

A restaurant and observation deck built in a unique broadcasting antenna.

The site of good faith and good nature in the fictional world of Kcymaerxthaere.

When German-Iraqi relations broke down, this embassy was vacated post haste.

This little museum is making sure that the art and history of the graffiti sticker is not scraped from history.

Someone loved this song enough to carve all of its lyrics onto a tree trunk in a Berlin park.

The abandoned remains of this Victorian brewery hide crumbling bowling alleys and rusting industrial gear.

This World War II bunker now survives as a documentation of the Nazi regime and war crimes.

Berlin's oldest surviving academic architecture hosted decades of animal dissections.

A surreal museum of extraordinary industrial objects.

An existential riddle in the world's largest ancient castle.

A bus with a butt and biceps to put Olympic athletes to shame.

A former squatter's paradise outside Prague.

An Orwellian sculpture with eyeball cameras watches passersby.

The tunnel's elegant proportions keep you snug with no claustrophobia freak-out.

A saintly relic hidden in a Prague church basement.

An old asylum graveyard that's been abandoned for half a century attracts those seeking a dark thrill.

Walk through Czech history in Prague's largest graveyard.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Two stunning 17th-century libraries and a cabinet of curiosities.

One small town in the Pacific Northwest transformed itself into a Bavarian-themed tourist destination.