The highest point in Washington state is a volcano covered in glaciers.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

Despite a legend that says this highest peak in Oregon was climbed in high heels scores of people have died on its slopes.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

A Bibliophile's Dream.

A toxic ghost town sitting atop a massive coal fire.

When ecosystems collide in the arid Southwest.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

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

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

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

An artsy hidden staircase leads to breathtaking views of San Francisco.

Golden Gate Park's historic collection of plants.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

The world's longest known cave system.

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

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

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

The shortest river in America flows for just 201 feet.

The last physical evidence of the Lewis and Clark trail is one of their autographs etched into this giant rock.

Mining town from the late 1890s, once home to Calamity Jane.

For thousands of years, Native American hunters drove buffalo straight off this cliff in Montana's Yellowstone Country.

An apocalyptic seismic event creates a deadly chain reaction that ends with a 6-mile long lake developing within weeks.