Nine limestone rock stacks on Australia's "Shipwreck Coast."

An incredible garden taking over the interior of a massive sinkhole.

A simple tribute to the migrant workers who landed here before walking hundreds of miles to Victoria's gold mines.

This stone tower was built in the late 19th century to signal the time to ships in the water.

The largest collection of Indigenous Australian artifacts in the world, and the rare museum where wood-and-glass cabinets have trumped interactive exhibits.

The colony of South Australia was proclaimed on a hot December day under a distinctively arched gum tree.

Elvis's own personal tropical hideaway.

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

Walk the whole Mississippi River!

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

When you visit his grave, be sure to rub the Great Emancipator's nose for good luck.

One of the largest carillons in the world, this giant instrument has 67 cast-iron bells played by a keyboard.

Three hundred years of preserved Spanish colonial history in San Antonio.

These aggressively sustainable art homes look like something out of 1970's science fiction.

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

Twenty-seven massive radio antennas on the high plains of New Mexico search for life on other planets.

This centuries-old pueblo church houses the body of a Franciscan friar who is said to be a rare "incorruptible" corpse.

Thousands of pieces of art have been carved into the rock at the site of an ancient volcanic eruption.

"I did this all while you were watching TV."

If drivers cross the rumble strip on this stretch of Route 66 at just the right speed it plays "America the Beautiful."

The official atomic museum of the United States explores the explosive and productive history of a much maligned energy source.

A burnt-out motel with priceless Native American artwork in the basement, redeveloped into apartments.

This opulent Pueblo Deco movie palace melds Art Deco and Native American motifs.

Volunteers spent years restoring a vintage steam locomotive to operating condition.