A swing to dangle you off the very edge.

There is no trying to fall in love with this Star Wars fountain, you just do or do not.

Towering basalt columns, a creation of fire and ice.

Shop selling 500 flavors of soda has something for everyone.

Famously misunderstood wonder of the ancient world

The old Niles Canyon Aqueduct in the San Francisco Bay Area is a bemusing and secret trail through nature for wayward travelers.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

America's most famous piece of self-built architecture.

Try not to get slimed in Tribeca.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

The rocks in this arid basin leave trails of movement behind them.

A lovers' beach, tucked below the surface of the island, provides a safe haven for romance.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

An old vending machine serves up unpredictable beverages from its seemingly magical insides.

The world's only museum devoted to the wonders of fluorescence.

An eerie, derelict amusement park in Berlin.

Medicinal spa created with the discharge from a geothermal energy plant.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

Rippling sand dunes frozen in the Arizona rock.

A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.