A phenomenal assembly of pueblos in New Mexico is the most complete example of ancient ruins north of the border.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

The most powerful waterfall in all of Europe.

This elegant arc of a waterfall marks a religious turning point.

Strange rock formations tower above the river that snakes through this enchanting Icelandic canyon.

Rising from the sea like a stone monster.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

You would never come across this tiny green oasis if you didn't know it existed.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

Local lore holds that Butch Cassidy took an escape route through Red Canyon's sandstone hoodoos after an attempted murder.

The fifth-longest natural arch in the world, and the longest outside China.

Once a menacing challenge for trailblazers, this trail is now the most scenic drive in Utah.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

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

A festival where people vie to be bombarded by exploding clusters of fireworks.

Every year, the town of Menton, France, turns lemons and oranges into giant sculptures depicting windmills, dragons, and more.

The idyllic island where the philosopher Jean-Jacques Rousseau spent “the happiest time of his life.”

A cablecar-station-turned-revolving restaurant with 360-degree views of the Swiss skyline.

Traversing steep Alpine slopes, this engineering marvel is one of the longest and highest funiculars in the world.