Elvis's own personal tropical hideaway.

A psychological self-portrait in the form of a giant, segmented head.

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

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

Home to the deepest rift anywhere on Earth.

Nature's biggest mammal swims in landlocked Oklahoma.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

These banned cigarette vending machines now sell little pieces of pocket-sized art.

Legends surround this jagged rock formation in the New Mexico desert.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

A house carved into a rock in the 1940s.

When ecosystems collide in the arid Southwest.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

A sculpture made of 10 Cadillacs as a monument to the “Golden Age” of the American automobile.

The "Seinfeld" diner.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

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

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A beautiful geyser under environmental threat.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

Flashy signs from Las Vegas’s past find their final resting place at this unusual graveyard.

This unusually circular centenarian barn became a Route 66 icon.