A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

This natural wonder drops 16 stories straight down through rare flora and streaming waterfalls.

A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.

One person's lost luggage is another person's treasure.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

Towering basalt columns, a creation of fire and ice.

Seemingly grown on some other world, these New Mexico rock formations look like a disused science fiction set.

Order scoops of pandan, lychee, and black sesame at this family-run institution.

A beautiful geyser under environmental threat.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

The site of the climactic scene from the classic horror film is now a historic landmark.

The first declared National Monument in the United States.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

A subterranean shelter remains intact under a busy Paris railway station.

"In the Dark" Restaurant in Paris offers dinner in complete darkness.