Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

The only remaining U-boat that is still floating never actually saw any action in World War II.

What looks like a suicide in progress is actually a statue of Sigmund Freud.

The first museum in the world devoted to sexual gadgetry.

Macabre astrological automaton clock dating to the late 1400s.

70,000 empty bottles of Coke comprise an ad seen only from the air.

A sculpture of a giant hand reaches for the stars in the middle of the Atacama desert.

What was once a unique system of urban elevators is turning into a mechanical ruin.

This Brazilian palace island was once the site of the last grand ball before revolution.

Beautiful public park off the beaten path and away from tourists.

The second largest waterfall by volume in the U.S., Willamette Falls is outdone only by Niagara in the amount of water that is pushed northward.

A wall of chewing gum moonlights as collective art.

A walk through the historic city center, under the streets of Seattle.

After much poking and prodding, this island is decidedly not a magnetic anomaly, but it sure is pretty.

Dedicated to an "Unknown Man," this grave holds either the remains of a lovelorn suicide or a Cold War spy.

The largest collection of Indigenous Australian artifacts in the world, and the rare museum where wood-and-glass cabinets have trumped interactive exhibits.

Come for the flowers, stay for the bats!

The yawning remains of a complex naval fortress still haunt this Australian shore.

This abandoned bunker looks out over the Atlantic from its clifftop perch.

A medieval village holds a very modern hotel.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

Commonly acknowledged as the only public monument to the Devil himself.

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.