Once a lonely sentinel on the edge of the Great Plains, this rebuilt trading fort offers a glimpse of life on the Santa Fe Trail.

When ecosystems collide in the arid Southwest.

Possibly the world's only drive-in movie theater with an attached motel.

A hotel with a rich Wild West history of miners and bootleggers.

This spectacular track has run continuously since 1882.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

Legends surround this jagged rock formation in the New Mexico desert.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

Hidden inside this Arizona fast food franchise is an in-depth exhibit on the famed WWII counterintelligence program.

This small interfaith chapel lies not far from the rim of the Grand Canyon.

The eroded core of an ancient volcano is now accessible by a short hike.

A Saint Nicholas-themed ghost town in the Mojave desert.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

One of the few remaining carousels built by master amusement park carver Charles I.D. Looff.

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.

This centerpiece of the Hollywood & Highland shopping center is a recreation of a long-lost movie set.

There are lots of hands and feet stamped in the cement in front of Grauman’s Chinese Theater, but Mel left behind something extra.

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

An iconic location along the Los Angeles River where countless movie scenes are filmed.

A community gathering place that once housed half-ton tanks and the World's Fair.

A giant Troll lurks under one of Seattle's oldest bridges.

Leave a button on the jacket of this iconic Seattle clown.

A nondescript Seattle restaurant inherited a piece of European history.

A wall of chewing gum moonlights as collective art.