The world's oldest hologram gallery and the labyrinthine laser laboratory of a holography pioneer.

This former Norwegian sailor's church is slowly being taken over by ramshackle robot musicians.

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

An artist's cute bronze subway sculptures belie his violent artistic past.

A DIY art gallery/music venue/lecture hall dedicated to video game culture.

A masterpiece of LGBT art has been restored in what may now be the most valuable restroom in America.

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

Tucked in a nondescript downtown Brooklyn mall is a bar containing a remarkable turn of the century anatomical wax collection last seen in 1920s Berlin.

This block in downtown Brooklyn was a hotbed of antislavery activism along the Underground Railroad.

This narrow shop in the East Village hosts a matchmaking service for the new millennium.

The artist and New York City icon lived, worked and died in this converted carriage house owned by another iconic artist, Andy Warhol.

A veritable variety of odds and ends.

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

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

A monument to the Mohawk people stands along an old Native American trade route.

Everyone's favorite neighbor is remembered fondly in this small-town church.

A careful eye can find hundreds of dinosaur tracks running along the Connecticut River.

The oldest playground in America.

A tribute to the couples who brave long periods of separation during wartime.

The nation's second-ever First Lady urged the founding fathers to "remember the ladies."

This 50-foot rock formation looked like a face that was once believed to be that of a Native American chief.

The remnants of a Gilded Age elegance preserved in the middle of a stark modern tower.

The massive machine creates cracking displays of indoor lightning.