Illegal drag racing two stories beneath Chicago’s streets.

A hotel and restaurant serving as the mecca of kitsch.

An alley covered with 20 years of bubble gum.

A remote crossroads honoring a fallen talent.

Hidden in the Santa Ynez Mountains off Highway 154, this tiny restaurant once served as a stagecoach stop.

Acres of natural wonders left behind by a socialite-turned-gardener.

The beautiful behemoth is one of the largest trees of its kind in the United States.

One of the only known surviving coconut palm trees in the entire state.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

Flashy signs from Las Vegas’s past find their final resting place at this unusual graveyard.

A 400-foot-tall tall map of Chicago makes this once-ignored building stand out.

The home of one of California's most important horticulturalists wilts amidst a lovely park.

This house is a mosaic of tiled artwork sourced from local artists.

A non-native grove of 241 redwoods in Southern California.

A glimpse into the lives of the the Miwok and Paiute people in Yosemite National Park.

This enormous World War II relic is one of the largest wooden structures in the world.

A house built from trash known as the poor man's Hearst Castle.

An unexpected and peaceful oasis on a hillside.

These four islands right offshore have waterfalls, colorful lights, fancy buildings, and a secret purpose.

The awe-inspiring ship from the golden era of cruising has an incomparable history and a reputation as one of the world’s most haunted places.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

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

World War II-era Nazi compound nestled in the Santa Monica hills.