This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.

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

An experimental, automotive replica of Stonehenge.

Pyramid home to an obscure religious group that practices modern mummification.

A hidden garden of stones engraved with scriptures, a Joseph Smith Sphinx, all carved by one man.

Here lies Lilly E. Gray, an alleged "victim of the beast," but the reason long remained a mystery.

This headstone-like marker inscribed with three words has been an utter mystery for over a century.

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

One man’s hobby is another man’s world of metal wonders.

The lecture hall where Alexander Graham Bell first demonstrated the long-distance phone call.

Packed with gear and memorabilia, this museum chronicles the history of skiing and how its rise shaped New England.

A battle between nature and architecture in the Cambodian jungle.

Hoax, mistake, or evidence of dinosaurs in human times?

This bridge made famous in a novel and on-screen wasn't actually built over the river Kwai.

The golden Buddha statue at the Wat Muang Monastery is the tallest in Thailand, and the ninth-tallest in the world.

Thailand's distressed elephants find peace at this Chiang Mai sanctuary.

A limestone wonderland of water and subterranean secrets.

A white Buddhist temple with a golden restroom.

Inside this Icelandic greenhouse, geothermal energy keeps tomatoes warm and growing.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

The oldest steel ship in Iceland has been beached for years and is now a rusting ruin.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

A winding, blood-red tunnel of hardened lava navigable by foot.

An encyclopedic collection of mammal penises.