Rising from the sea like a stone monster.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

Soaring over the Niagara Whirlpool since 1916.

This artificial cave looks like something out of a fairytale.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

These tall, red sandstone pinnacles outside Moab are often forgotten amid their more famous neighbors.

An improbable waterfall springs from an orange-white cliff face, tumbling into the headwaters of the Virgin River above Zion National Park.

Largest man-made excavation on earth!

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

Come for the speed, leave in love with the desert.

Giant pinnacles in the sun-scorched lands of Southern Utah have been nicknamed "white ghosts."

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

This geothermal hot spring hides beneath a slowly growing mineral dome.

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

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

The library of every book lover's dreams.

A six-story treehouse offers spectacular views of New York's Finger Lakes region.

In upstate New York, gorgeous waterfalls and a watermill are slowly being reclaimed by nature.

Dedicated to the art and science of glass in equal measure, this space is as much laboratory as museum.

More than a million titles fill the labyrinthine shelves of this prestigious private library.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

Banksy gives themself artistic license with this piece of London street art.

A creek tumbles over a series of step-like rocks to create this scenic water feature.