Major tourist destination known for its bubbling mud-pools and hot thermal springs.

This electric green sulphur lake in New Zealand looks like a cartoonish radioactive dump site.

Tubing through a cave lit with glowworms is a magical underground experience.

The real life Hobbiton, this sheep farm has been forever transformed since being built for The Hobbit film series.

A natural arch offers panoramic views of Yangshuo's karst hills.

A small 12th-century temple surrounded by waters believed to have curative properties.

This Cambodian riverbed is covered in ancient Hindu carvings both above and below the waters.

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

A battle between nature and architecture in the Cambodian jungle.

When the USA donated cement and funds to expand the airport in Laos, the Laotians built a massive monument instead.

Villagers have recycled bomber fuel tanks from the Vietnam War and turned them into very, very strong boats.

Thousands of effigies of Buddha watch from caves set high above a legendary river, plus whiskey.

More than 200 statues filled with cryptic symbols give this park spot an aura of horror vacui fantasy.

This tiered waterfall is so pretty it may cause visitors to cry tears of their own.

Meant to be a lavish presidential home, the palace became a symbol of the fall of South Vietnam.

This cavern was used as a hidden hospital and safe house during the Vietnam War.

Ha Long Bay's "Cave of Surprises" houses a popular phallic rock formation.

These crumbling towers are some of the last remnants of a centuries-old Vietnamese culture.

World's largest cave was only discovered in 1991, and now offers tours to the public.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

The blinking light atop the iconic landmark has been sending secret messages for decades.

This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

This well-traveled chess park offers scenic views of the pacific and a colorful, eclectic clientele.

Hollywood's oldest hotel is the site of the first Academy Awards, the birthplace of Marilyn Monroe's career, and the home of Montgomery Clift's ghost.