A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

This humble historic facade hides a history of boozing and the gentlemanly sport of rat-fighting.

A modern zoetrope on the New York City subway.

The last slot car racing arcade in Brooklyn is keeping the dream of speedy little autos alive.

The world's largest collection of materials relating to lesbian history is housed in a Brooklyn townhouse.

Volunteer-run library dedicated to exploring five decades of activism history.

Neon signs that grace the windows of Bergdorf Goodman's and Tiffany & Co. come from this studio in Brooklyn.

Abandoned power station once home to a squatter community, now being developed into an arts center.

The boulder on which Alexander Hamilton laid his head as he died can still be visited on the New Jersey coast.

Three-story slide through the New Museum.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

A playground inspired by differential calculus dangles from the ceiling of the Liberty Science Center.

A world-class collection of mechanical musical instruments and automata.

A restaurant on Staten Island showcases a different grandmother’s cooking every night.

Eighteen miniature death-scene dioramas.

Baltimore's classic clock tower was once topped by a rotating, 20-ton medicine bottle.

A hidden alley in urban Baltimore is a haven for graffiti artists.

The longest escalator in the Western Hemisphere takes over three minutes to ride down.

Two dozen pinball games hidden away inside a most unlikely location.

The likeness of the Baltimore music icon was unveiled in time for the anniversary of his Senate hearings on music censorship.

This weeping, 10-foot-tall sculpture was a maquette for a 9/11 memorial.

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

A layered tribute to the work of mosaicist Isaiah Zagar.