The UFO capital of Australia is the outback’s answer to Roswell.

An unphotographable nightly march of tens of thousands of "fairy penguins" from sea to shore.

This Australian beach is composed of tiny shells.

Come for the flowers, stay for the bats!

Clusters of huge boulders in the Australian Outback.

This trio of Australian rock spires may have inspired aboriginal legend or just modern tourism.

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

Alien rock formations grown from the sands of an Australian national park.

This gracefully curving formation looks like a massive wave that was suddenly turned to stone.

This elaborate temple was built around one of the Buddha's teeth.

Huge herds of Asian elephants can be seen walking, bathing, and just chilling at this Sri Lankan park.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

An incarceration museum on the spot of possibly the oldest prison in England.

A historic house left in "dramatic still life."

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

One part local history, 99 parts gruesome haunted house.

The history and future of cannabis.

Sweden's "good old days" painstakingly re-created in a model village.

It houses the remains of a 17th-century version of the Titanic.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

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

Elvis's own personal tropical hideaway.