A modern zoetrope on the New York City subway.

A charming "tea atelier" hidden away in Greenpoint, Brooklyn.

A curious friendship between two inanimate ladies.

One of the most enjoyable bits of history at Coney Island and “the most romantic ride in the world.”

“Invented in Key West, Perfected in Brooklyn."

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.

Sniff the Titan Arum's rotting flesh.

Detailed facade of a brownstone in Boerum Hill.

A band of aerialists and circus performers putting on incredible shows in East Williamsburg.

Leaf through over 30,000 artists' sketchbooks in what may be the world's largest collection of doodles

Behind a bodega is a small museum of relics and ephemera showcasing the history of New York.

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

First a horse rendering plant, then a 19th century landfill, this beach is full of glass from thousands upon thousands of broken bottles.

Ride the subways of yesteryear.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

This turn of the century masterpiece has a mysterious goaty interloper.

Half of a house.

Gold Rush-era tombstones line the park's paths.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

This shop and studio is dedicated to the art of the book, from letterpress to bookbinding.

A library built during San Francisco's pioneer times is a student's retreat, bibliophile's sanctuary, and chess player's delight.

Golden Gate Park's historic collection of plants.