These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

A curious little museum dedicated to the furry feline in the cat haven that is Old Town Kotor.

A former bank seized as a sniper vantage point during the Bosnian War is now a secret graffiti art gallery.

Bridge that died in war and was resurected.

The Cycladic architecture makes this Athens neighborhood feel like an island paradise hidden in the shadow of the Acropolis.

Madrid's last horchata kiosk is a blue-and-white beacon of refreshment.

The enigmatic skull gazes out over the ruins of a once-great Mayan city.

Spanning the El Chorro gorge, this pathway used to be one of the most dangerous crossings in the world.

A Milanese café entirely designed by the American director Wes Anderson.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

The famous sculptor left his mark on this Italian wall in an internationally protected example of street art.

On a cornerstone of the City Museum is the head of a monstrous serpent stolen from an Aztec pyramid 400 years ago.

An island filled with hundreds of hanging, decomposing, decapitated dolls.

This beautifully deceptive waterfall is something far different from what it appears to be.

A kaleidoscopic warehouse-maze of handmade neon signs.

In the back of a nondescript sports bar is a museum-worthy mural by legendary cartoonists.

Spinning silently in the lobby of an Art Deco masterwork is a massive vintage model of the Earth.

This metal eagle one of the final remnants of a newspaper that wanted to keep Brooklyn to Brooklyn.

There are owls with glowing eyes in Herald Square.

Estonia's largest creative city is a vibrant bohemian hub located within a former industrial complex.

Flamboyant architecture from the turn of 20th century.

3,000 market stands in five former Zeppelin hangars.

This Austrian museum celebrates the work of famous forgers and their inimitable imitations.

Original cabaret handbills, posters, and feline artwork are a purrfect highlight of the Museum of Montmartre.