The mummified heart of a saint lives on in this church—after a brief hiatus when it was stolen.

One of Ireland's most infamous prisons for rebels including men, women and children.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

A beloved tribute to the Fab Four and the freedoms they inspired.

An institution dedicated to curiosity, logic, riddles, and Mongolia's long history of puzzles.

The world's tallest statue of a woman wields the world's tallest sword and is at risk of toppling over.

This stunning concert hall has become a symbol of Iceland's national recovery.

Puffin enthusiasts flock to Europe's largest seabird cliff, which over one million birds call home.

The oldest steel ship in Iceland has been beached for years and is now a rusting ruin.

Every summer local children form "pysja patrols" to save young birds that have wandered from their nests.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

The most powerful waterfall in all of Europe.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

Medicinal spa created with the discharge from a geothermal energy plant.

A 250-year-old timepiece-automaton adorned with golden mechanical birds, which still sing to this day.

Palace where the nearly un-killable Rasputin was murdered.

An iconic Soviet statue of working-class people.

Gargantuan home of Russian science.

One of the world's tallest statues is also one of its most hated.

A 360 degree battlefield experience.

The world's first museum dedicated to the work of game-changing naturalist Charles Darwin.

World's largest bell sits on the grounds of the Kremlin in Moscow.

Moscow's imposing monument to the Space Age.