The largest madrasa in Morocco once housed more than 900 students within its exquisite walls.

It took 40 years to build this Eden-like garden in Marrakech, later restored by Yves Saint-Laurent.

Fortune tellers, snake charmers, poets, and storytellers all gather on this historic square in Morocco.

This vast masterpiece of Moroccan architecture spreads across 20 acres.

This once-derelict building is now one of the most beautiful bookstores in the world.

This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

This memorial to the victims of the Romanian Revolution of 1989 is often compared to a potato on a skewer.

This sculpture used famed boxer Joe Louis as the inspiration behind its body.

Romania's triumphal arch looks out over Bucharest.

This fairy-tale castle would make Dracula (who is said to have been imprisoned there) jealous.

Something's watching you.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.

A fire once nearly devoured this gorgeous 14th-century Gothic cathedral.

The possible imprisonment of Vlad the Impaler here earned the medieval castle its nickname, "Dracula's Castle."

A towering spire in the fortress of Kalemegdan honors the victorious armies of Serbia during their struggles against the Ottoman Empire.

A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

A statue in Budapest's Liberty Square honors the former U.S. president's efforts to end the Cold War.

The mummified right fist of a 1,000-year-old saint-king sits inside an ornate golden reliquary.

Also known as Uncle Karl, the beloved bronze copper keeps a watchful eye on St. Stephen’s Basilica while people rub his lucky belly.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

A museum dedicated to a secret military hospital hidden beneath a castle in Budapest.

This black church sits alone among a field of lava rock.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

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