Renaissance hospital featuring a rotating door into which unwanted babies were dropped.

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

1,001 carved statues of the Buddhist God of Mercy, each with a unique face.

Burial mound for the ears and noses of thousands of mutilated Korean soldiers.

This futuristic German television spire is actually the world's largest digital clock.

This medieval castle was reconstructed by Carlo Scarpa.

A museum run by retired highway engineers who helped rebuild after the Great Hanshin Earthquake.

Japan's largest collection of Western-style mansions in the port city of Kobe includes a recreation of Sherlock Holmes' 221B Baker Street quarters.

The prototype for all Nazi concentration camps.

Go surfing on this urban wave, "hacked" by local surfers.

The narrowest street in the world is in danger of closing up entirely.

Visitors may notice something strange walking through this quaint German town.

This former insane asylum now holds a pathological anatomy museum.

Macabre museum devoted to historical Viennese murders.

This series of Baroque passageways in Vienna's cultural center mix old architecture with modern art.

Visitors dating back to the 1600s carved their marks in the stones of the iconic tower.

Explore this medieval cathedral by trying to spot all the malevolent monsters hiding in its beautifully colored windows.

There has been an astronomical clock on this spot since the 14th century.

According to the local folklore, the myriad colors of this lake are the result of a lovelorn wizard's blunder.

Two very green residential towers cleaning the air in one of Europe's most polluted cities.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

This ship carrying cargo and four church bells for the Catedral Metropolitana Nossa Senhora Aparecida ran aground in 1968.

Rolling sand dunes of the Sahara... in the middle of the Atlantic Ocean.

Pilgrimage site for star-crossed lovers.