Walk 2,300 feet above the ground on the "Troll's Tongue."

Unusual, mushroom-like rock formations caused by weathering and water erosion, set to disappear, according to geologists.

This UFO landing strip was created by a charitable Wyoming city that was worried about residents of Jupiter.

Rippling sand dunes frozen in the Arizona rock.

An oddly specific collection of handmade dolls remembers the women of the White House.

A sculpture for the sun and stars, created by Nancy Holt.

A miraculous natural phenomenon known as "the spring that breathes."

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

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

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

This tiny river island switches sovereignty every six months as part of a rare, centuries-old agreement.

An abandoned saucer-shaped monument in the Bulgarian mountains.

This vertical pinnacle in China was the inspiration for the floating mountains in the movie “Avatar.”

A butcher shop in Minneapolis has all the meats and cheeses you’d expect from any of its kind—except that all the products are vegan.

Comprehensive gaming collection of over 30,000 electronic games and consoles.

A favorite of Amelia Earhart, ranking among those rare bridges that can be crossed without changing sides of the river.

Cold War missile launch site which has been converted to a public park.

The center of the only hemisphere that awards visitors with a commemorative coin.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

The first declared National Monument in the United States.

Population: 1.

This frequently-photographed waterfall takes only a short hike to visit.

A volcanic landmark located on an Ice age lake bed.

A former gold rush boomtown has managed to stay in business for over 100 ramshackle years.