The often-overlooked ruins of one of the first buildings designed by famous landscape architect Frederick Olmsted.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

A beautiful Victorian-era cemetery, complete with a miniature village.

A giant toy jack made of numerous welded-together fire hydrants.

The early American colonists were such ferocious drinkers the law actually required every town to have a tavern.

360° views of the city plus five floors of optical illusions and hands-on science.

A 30-acre garden inspired by the principles of modern physics.

The floor-to-ceiling collection in an old factory is a unique alternative to stuffy galleries.

Golden plates containing what would become the Book of Mormon were believed to be buried on this New York hillside.

Four cars from the old system were once on display, but were removed in 2014.

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

Red Hook's massive public pool, built by Robert Moses.

A community farm in the midst of the Brooklyn concrete.

Built as a home for the Union Porcelain magnate in 1867, now the Greenpoint Reformed Church and home to a ceramic mystery.

Final resting place of the immigrant who brought artificial seltzer water to America.

A yoga studio and venue for "chill-out parties" in a former chicken slaughterhouse.

Every animal in the torah taxidermied and crammed into a Brooklyn townhouse.

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

“Invented in Key West, Perfected in Brooklyn."

A modern zoetrope on the New York City subway.

A toxic ghost town sitting atop a massive coal fire.

A preserved oak tree about 3,500 years old found in Riga, Latvia.

A book collector's dream, this Toronto bookstore has the world's first "Biblio-Mat," a random book vending machine.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."