The only structure left with direct ties to the Salem witchcraft trials of 1692.

This African beach is home to thousands of rare mainland penguins that are known for their annoying voice.

Thousands of narrow alleyways in an ancient medieval city make up what's believed to be the world's largest car-free urban zone.

The other side is actually green.

God's Saharan sandbox of wrath.

Mosaics, storks, and brothels—this ancient city has it all.

A fortified city, home to a remaining population of five families

World's largest film studio, where visitors tour the decaying sets that litter the harsh desert environment.

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

Macabre astrological automaton clock dating to the late 1400s.

World's largest barrel containing an inn.

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

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

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

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

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

The fairy tale castle of the "fairy-tale king."