Walk through Czech history in Prague's largest graveyard.

A Jenga-style cylindrical tower of books that appears to go on forever.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

A miniature rainforest is growing inside of a Midtown Manhattan office building.

Try not to get slimed in Tribeca.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

This stack of stones honors a murdered 18th-century woman.

This 16th-century close preserves an unusual piece of Edinburgh's transportation history.

This king penguin is a knighted brigadier of the Norwegian Army.

The final resting place of soldiers' loyal canine companions.

This historic pub has maintained much of its 1906 decor, including a small sequestered room for women, where orders were slipped through a tiny window.

Tiny effigies of the victims of Edinburgh's famous Anatomy Murders.

Poseidon? No one seems to know.

Iceland's first pagan temple in 1,000 years is underway in Reykjavík.

This museum dedicated to divination also honors a local 10th-century prophetess.

Learn about Iceland's hidden folk at this school dedicated to the study of elves.

A museum dedicated to a Cold War era sausage.

From Iggy Pop to David Bowie to Nick Cave, this regal music studio has served some of the all time greats.

It celebrates a very stinky task and salutes London's fatberg-vanquishing team.

An exercise in radical design and social living that became the epicenter of Soviet spy networks in London.

The gigantic skull of a long-extinct species that once roamed the forests of England and Ireland.

A fully functional, 200-year-old remnant of the time when Brixton was mostly fields.

Putting the "mod" in "modular" since 2000.