An unexpected connection to Chicago awaits visitors on an island just off the California coast.

Don't bother sending any mail to this ghost town.

A frozen oasis lies beneath the scorching New Mexico desert.

The smallest Mexican land grant in California was given, and then taken from, a 19th-century teacher and nurse.

America's oldest Italian restaurant is a San Francisco institution.

A plaque and memorabilia collection mark where A&W got its start.

This outdoor gallery of sculptures along the East River was once a landfill.

At this 1940s-era neighborhood favorite, you can still drink a cherry phosphate.

Carved by a waterfall in a hard-to-reach rock formation, this heart-shaped rock has inspired romantics for decades.

This elaborate High Victorian Gothic structure is one of the world's few 16-sided buildings.

An abandoned boat that's been stranded mysteriously for decades.

Home to the "Circus" trees created by Axel Erlandson.

This wondrous hideaway is suspended in a bamboo forest above a sanctuary for rescued llamas and alpacas.

Once America’s most beautiful army base, this abandoned military fort on the coast of Monterey Bay has been left to the elements.

One of the most elaborate displays of Jellyfish is on display at the aquarium.

This quirky roadside attraction dives into the many theories surrounding North America's most infamous hairy cryptid.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

Playable, historic pinball machines fill this Alameda museum.

An ominous concrete cube cuts a dystopian silhouette atop this California mountain.

A small Second Empire-style building is one of only seven remaining lighthouses on the Hudson River.

This permanent exhibition of commercial signs aims to preserve the cultural heritage of the city.

A colorful, century-old cemetery of the Yaqui Indian Tribe hidden amid the suburban sprawl of Tempe, Arizona.

Hidden in the New Mexico desert southeast of Roswell, nine small deep lakes formed inside sinkholes.

US-50 in Nevada is known as "the Loneliest Road in America," but this earlier iteration of the route is even lonelier.