Hike the unusual hoodoos and rock formations that form this little-known natural wonder.

This private residence was the template for one of the most beloved television homes of all time.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

One of the oldest producers of hand-folded fortune cookies still uses its original secret recipe.

This strange seaside tower got its name from a wealthy eccentric who would hide coins among its stones.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

Disks are rolled out onto the south lawn to absorb the impact of Marine One's wheels like giant coffee coasters.

The first presidential bomb shelter was located in an old vault under the Treasury, connected to the White House via tunnel.

An overlooked memorial honoring the local Washington residents who died in World War I.

Members of Congress have traveled between the buildings on Capitol Hill for a century hidden from tourists, press, and storm clouds.

In California, colorful roadside signs remind us all that love transcends borders.

This former shopping outlet is now adorned with beautiful graffiti and murals.

These markers are used to document elevation changes around the famed dam.

These markers are used to determine the ground stability of the Strip.

This nonsensical smiling boat shuttles passengers between two places they could've easily walked between.

View the California coastline (and the home of Barbara Streisand) inch by inch with stunning, government-sanctioned aerial photography.

This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

The decor of this Hollywood movie palace just barely predated the opening of King Tut's tomb.

The private clubhouse for the members of the Academy of Magical Arts.

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.

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

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

This Hollywood dive houses a mural painted by the artists who animated its namesake film.