The neighborhood shop is a sort of tiny cactus museum full of exotic specimens you can take home.

San Franciscans leave gifts and messages for the magical beings that live behind the tiny, mysterious door installed on a tree in Golden Gate Park.

A hidden subterranean installation offers a view of the sky.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

This naturally heated mountainous creek has created a group of neon blue pools of potentially deadly boiling water.

The second largest waterfall by volume in the U.S., Willamette Falls is outdone only by Niagara in the amount of water that is pushed northward.

Travelers exchange letters with woodland creatures at this mini post office.

Despite being one of the most photographed vistas in the Rockies these twin peaks are rightfully known as the "Deadly Bells."

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

A tiny red pebble marks what may be the quietest outdoor spot in the United States.

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

A futuristic temple of light uses prisms and rainbows to create an atmosphere of peace.

Sandstone rock formations that look like they belong on the cover of a progressive rock album.

Finale of "William Tell Overture" can be heard as drivers pass over grooves in the road.

Brightly colored 30-foot-tall totems light up the desert sky just outside Las Vegas.

This free, take-a-book shop seems like a trick but isn't.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

A ghost town at the airport is now a refuge for blue butterflies.

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

The tea room that pushed the boundaries of adorable straight into...we can't find the words.

An extraordinary mixture of natural beauty and man-made phenomena.

Hidden beneath a bridge, this waterfall is known for the large amounts of graffiti painted on its base.

A meditative space out of a fantasy story.

Explore 10 acres of environmental sculptures.