Spinning silently in the lobby of an Art Deco masterwork is a massive vintage model of the Earth.

This semi-hidden Manhattan restaurant is based out of a loading dock.

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

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

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

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

Hiroshima survivor on Riverside Drive.

A curious fountain that has no water and includes Satan, a crab, and 9 giraffes.

A hyper-luxurious, 12,000- square foot home might be buried beneath Queens, still waiting to protect you from nuclear missiles.

The oldest surviving bridge in New York City, which reopened to pedestrians in 2015.

A remnant from the golden age of aviation still in use today, Pan Am's Clipper service took off from this Art Deco gem.

Read between the lines of the subway map to find the hidden abandoned Civil War fort.

The oldest continuously operating farm in New York State.

This enormous Hindu temple in Queens serves incredible dosas in its basement canteen.

The Vatican of the movie industry turned into an actual church.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.

The once abandoned ruins of a Victorian beachside amusement park are now back in working order.

Home of Philip Johnson, one of the 20th century's most influential architects.

An Escher-inspired library dedicated to the wonders of the human mind, yet closed to the public.

It looks like a whale, it's part of Yale, and it's best-known by a nickname you can probably work out for yourself.

This opera house along the banks of the Connecticut River has two Tony Awards to its credit but it’s never staged a single opera.

Want to build a wind turbine? Secede from the nation.

Underground tunnels remain beneath this abandoned mental asylum.