This secluded walking trail is a hidden gem of a Pittsburgh park.

Its vintage camera collection gives a snapshot of the past as viewed through a photographic lens.

A 9-story, poured concrete structure which was used as a glue factory with an indelible smell.

This eclectic sculpture garden in Brooklyn, home to a bizarre collection of art, was once a run-down junkyard.

This striking arch, one of the first architectural elements constructed in Prospect Park, was recently restored to its original glory.

In Little Caribbean, an ice-cream shop serves up regional flavors, including soursop, Irish moss, and "greatnut."

An unconventional space for art and science housed in a massive old warehouse.

Con Edison’s exotic and heat-loving pests.

Risk arrest while partying to fund art.

The famed amusement district marks the beginning of summer with a wild procession of nautical creatures.

One Brooklyn man's collection of life-size fiberglass statues has taken over his entire yard.

A working metal shop and venue for outrageous art and music shows in a former cannonball factory.

Here, exhibits come with a side of edible history.

A curious friendship between two inanimate ladies.

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

One of only two remaining Victorian-era greenhouses in New York.

This outdoor gallery of graffiti-covered walls pays homage to the past, present, and possible future of street art.

A no-frills cinephile haven known for showing offbeat, underseen films.

Check out the underground party scene at the "Burning Man of Brooklyn."

This interactive gallery makes you feel like you've stepped into a fantasy world filled with whimsical monsters.

You can still ride this 100-year-old work of art in Brooklyn's largest public park.

This collection of grinning ephemera has grown from basement to Brooklyn.

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

Detailed facade of a brownstone in Boerum Hill.