A museum dedicated to the history and exploration of both popular music and science fiction.

A giant Troll lurks under one of Seattle's oldest bridges.

"A hideous albatross in the Hudson River Valley."

A memorial marks the library lobby where Langston Hughes' ashes are buried.

This iconic tattoo shop has its own onsite museum with artifacts from the early history of modern body art.

A notorious punk house turned co-op.

Unrepaired walls from a 1920 anarchist bomb attack.

Cryptic messages embedded in the New York City sidewalk.

Plot your trip through the city on the sidewalk.

A living archive of urban activism and space reclaimed.

For over 30 years the walls of this Harlem schoolyard have been a gallery of street art by "Kings and better."

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

Ruins of the elaborate house where the enigmatic costume designer threw glamorous parties for New York's theatrical elite.

This mouldering abandoned mental hospital was once a center for progressive healing.

Couple's personal collection of pinball machines turned public pinball museum.

A university observatory dome painted to resemble the beloved 'Star Wars' droid.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

Rippling sand dunes frozen in the Arizona rock.

Most-visited and most-photographed slot canyon in the American Southwest.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

This frequently-photographed waterfall takes only a short hike to visit.

On the Oregon coast there is a natural hole that seems to be draining the sea.

This former Masonic hall has been turned into an art project that uses even more metaphysical iconography.

Try not to get slimed in Tribeca.