The oldest bibliophilia club in America, with exhibitions on historic books and graphic arts.

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.

The mass grave of a heroic Revolutionary War regiment sits below an empty lot near the Gowanus Canal.

The one-stop shop for all of your superhero (or evil arch-nemesis) needs.

A huge resale shop for the cast-offs of the film & television industry.

A museum devoted to bringing to light forgotten or neglected histories through exhibitions, education and public programming.

The world's largest military aircraft cemetery.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

A hospital where antique dolls are given new life.

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

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

A semi-scholarly approach to sex.

Historic funicular railway, believed to be the shortest railroad in the world.

Phil Mortillaro uses keys to bring art back to the Village.

Tucked in the back of this amazing antique store is an important piece of medical history.

A terrific purveyor of natural history objects and curios.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Rummage through this sunken ship, but leave your scuba gear at home.

A room in New York City that contains 250 cubic yards of dirt worth a million dollars.

The middle finger of modernity.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

An alley covered with 20 years of bubble gum.