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

Unrepaired walls from a 1920 anarchist bomb attack.

A former insane asylum despised by Nelly Bly and Charles Dickens is now fashionable apartments.

A popular European tradition makes its way to the states on one of America's most famous bridges.

A very classy 1920s-era bar right in Grand Central Station.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

Once the tallest building in the world and the site of "the highest dinner ever held in New York" this building now holds the most expensive penthouse in the city.

One of the last few places in Manhattan that employed a pneumatic systemic keeps it on display.

This unmarked and unloved Manhattan subway grate created one of the most iconic images in American cinema.

One of only two commuter aerial tramways in the United States.

A semi-scholarly approach to sex.

Read a book next to a Midtown waterfall.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

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

An enormous, inside-out glass globe built in 1935.

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

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

A crumbling hospital from the 1850s on Roosevelt Island.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

Portlandia is the second-largest copper repoussé statue in the United States.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

Every equinox this Maya pyramid puts on a spooky ancient light show.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."