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

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

Resting place of Hollywood's immortals is also site of summer film screenings.

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

A 1940s nuclear reactor built to produce plutonium for the Manhattan Project.

Nuclear reactor created the plutonium used on Nagasaki.

South Dakota's oldest operating brewery is housed inside a historic firehouse.

Belly up to the bar in Cowtown, don't forget to buy some boots.

An abandoned Depression-era zoo hidden just off the highway.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

One of the greatest heroes of the Titanic tragedy came from humble beginnings to this beautiful home.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

The only diamond mine in the world where you can keep what you find.

The decorations were inspired by an unlikely missing treasure.

A monument to the center of the North American continent may be off by a few miles.

The unique traffic pattern named for an influential urban planner is also known as the Pedestrian Scramble.

The world's tallest doric column is this Ohio monument to a naval victory in the War of 1812.

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

Commonly referred to as the most photographed Victorian home in the United States.

One small town in the Pacific Northwest transformed itself into a Bavarian-themed tourist destination.

An outsider art duo's yard has been turned into a whimsical public gallery.

An exercise in patience and imagination, where Mother Earth turned common stuff into precious hidden treasures.

Sweet Willy, at 30 feet tall, is the world's biggest beagle.

Site of the greatest known waterfall that ever existed.