Ride the subways of yesteryear.

A religious-themed park filled with folk art to bring biblical stories to life that fell into disrepair and now being restored.

A hidden network of subterranean passageways lies tangled beneath Indianapolis' bustling City Market.

One person's lost luggage is another person's treasure.

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

New York City's smallest piece of private property.

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

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

A DIY art gallery/music venue/lecture hall dedicated to video game culture.

Where beautiful signs live on forever.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

A strange house built only at night, with rumored mystic inspiration.

Odd outsider art installations surround a Gold Rush-era ghost town.

A museum befitting the city responsible for supplying the majority of the world's LSD.

Under a glass sidewalk lie the remains of some of Manhattan's oldest buildings.

A technicolor place of worship for Elevationists.

A hands-on traveling collection of the innovative devices of yesteryear.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

A rare view of a preserved Victorian science museum.

This abandoned amusement park was built on a site with a dark history.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

This New Orleans tree is filled with hidden chimes that produce a carefully tuned melody.