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

The other side is actually green.

One of the most spectacular canyons in the world.

One of the last few places in Manhattan that employed a pneumatic systemic keeps it on display.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

One of only two commuter aerial tramways in the United States.

A Pythagorean funhouse that tries, successfully, to prove that math is the coolest thing ever.

Two stone columns flank the grand Venice square, but there were supposed to be three.

Pilgrimage site for star-crossed lovers.

A little sculpture with a large wardrobe.

Meet the bronze beloved pet to a family of famous peeing statues.

Longest road tunnel in the world features an air treatment plant and the illusion of daylight.

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

The most visited, and possibly most controversial, museum in Germany.

The "dragon babies" of southeastern Europe.

A whimsical bridge adorned with decorative dragons.

A miniature train-ride through Slovenia's largest cave system.

This one-time health resort was used by aristocrats around the world.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

See some of the world's greatest racing horses at this idyllic thoroughbred breeding facility and garden complex.

An Irish town has built a statue to a silent film actor simply thanks to the holidays he once spent there.

The skeleton of a whale that beached itself in this Irish town is now on display in their public park.