The sinister ruins of one of the worst dam failures of the 20th century lie in this astonishing alpine setting.

This narrow canyon has been carved by the river over thousands of years into spectacular and curious forms.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

The abandoned ruins of a beautiful medieval castle just outside Barcelona.

This mesmerizingly colorful pond looks like a scene straight out of a fairytale.

Japan's largest area of "pink moss" turns the hillside bright pink every spring.

Burbling away in refrigerators are 105 sourdough starters from around the world.

This 170-year-old Swiss guesthouse built into the side of a mountain is best accessed by a cable car.

An abandoned railroad tunnel is now filled with bioluminescent bugs.

Rare wooden escalators lead deep down into an otherwise staggeringly monotonous tiled tunnel.

One of the world's steepest streets seems to have houses sliding down it.

At high tide this strange footbridge appears to have no purpose whatsoever.

A breathtaking flower tunnel bursts with beautiful golden blossoms.

Georges Seurat’s pointillist masterpiece has been recreated in Ohio in topiary form.

The dramatic upward-curving roof is one of the most iconic examples of Googie architecture that still stands today.

When it came to designing his own small office building, the eccentric architect wasn't afraid to show the world what he could do.

Norway has built what may be the world's most beautiful public toilet.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

A botanically themed auditorium blooms within the world’s last operating double-decker theater.

A strange rock with a sinister reputation lurks within the crimson waters of this Scottish glen.

Bali's remote "gateway to heaven" is one of the most sacred places on the island.

A futuristic hovertrain is parked unceremoniously alongside a nondescript road.

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.