A unique collection of old miners' cave homes carved in to the hillside cliffs near Death Valley.

One of the last surviving buildings of a once large and thriving Chinatown.

A classic American barn that was the home of a classic American television star.

A "haunted" landmark on the coast of Southern California.

A dilapidated dock tells the story of Titanic's missed arrival.

See four top-secret US spy aircraft of the Cold War era, including the legendary SR-71 Blackbird and the A-12 Oxcart.

A historic train ride from California to Mexico.

Located close to a movie studio lot, this restaurant has a long history of star-studded patronage.

An assortment of armored tanks and Howitzer cannons in the middle of the Sonoran Desert.

These two K-9 memorials commemorate the sister cities of Edinburgh and San Diego.

Established in 1937, the oldest candy shop in New York City boasts a rainbow-colored inventory that would make Willy Wonka envious.

A shockingly detailed small scale recreation of the temples of Abu Simbel.

Pasadena glamour turned government issue.

Wander through desolate oil fields littered with rigs.

Designed by famed 20th-century architect Cass Gilbert, the future of this abandoned 1908 rail station is currently in limbo.

This museum is a music lover's introduction to the iconic venue.

The Hollywood home of Kermit the Frog and Yoda used to be Charlie Chaplin's film studio.

This mysterious petroglyph evokes the ancient swastika symbol but was later vandalized with the more troublesome Nazi one.

A historic hydroelectric power plant serves as the unusual backdrop for a public park.

Decor at “Nevada’s Oldest Thirst Parlor” includes Raquel Welch's brassiere hanging from a stuffed moose head.

The world's first disc golf course has the Jet Propulsion Laboratory as a neighbor.

A forgotten relic from New York's bygone trolley system hides in plain sight under a bridge.

A famous songsmith's custom piano, dubbed "High Society," is hidden just out of sight in one of New York's finest hotels.

If it hadn't been caught in time, a flaw in the design of this Manhattan skyscraper could have led to its collapse.