A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

Hamburg's first legal sex work is relegated to a gated street that still does not allow pedestrian women.

A little sculpture with a large wardrobe.

One of the most iconic neon ads of former East Germany.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

Stalactites and stalagmites in a beautifully lit cave.

In a city that boasts four separate inclined cable railways, this is one of the busiest funicular lines in the world.

A colorful piece of contemporary art cheerfully clashes with Lyon's historical architecture.

The celebrated eyesore created by starry-eyed sweethearts.

This artistic fountain display pays homage to this area's theatrical history.

This modern French ossuary contains the jumbled bones of 130,000 WWI soldiers.

A king's bloodstained shirt is among the gruesome collection of artifacts displayed below Stockholm's Royal Palace.

A museum that chronicles the history of the Nuremberg Trials for Nazi war criminals in the building where the trials were once held.

The ruins of a megalithic monument sit right in the garden of a luxurious Maltese resort.

A spectacular cave and a beguiling lake.

This cathedral hides a sculpted dog that determines your fate and an unexploded shell from World War II.

An ancient Phoenician citadel once stood at the site where Queen Dido first landed, according to legend.

The 18th-century home was disassembled into 253 cases and brought all the way from the other side of the world.

This trio of Australian rock spires may have inspired aboriginal legend or just modern tourism.

Brisbane's manmade urban beach has enough water to fill five Olympic-sized swimming pools.

The only pollutant in the clear blue water is sunscreen.

WWI hospital ship lost in a cyclone turns up on the coast of Fraser Island, where she remains rusted and forgotten.

A small, but award-winning beach known for its literally spotless reputation.

These flying foxes dangle from the trees around the library like fuzzy black fruit.