The crown jewel of the Queens Museum is a nearly 10,000-square-foot architectural model of the city originally built for the 1964 World's Fair.

The factory for the popular Dumbo location, the Greenpoint shop is a quiet gem.

New York's oldest and possibly grandest keeper of books.

The loneliest island in New York.

The famous author's cottage hideaway.

The beautiful tunnel that ran from the lobby to Penn Station is still hidden underneath 34th Street.

Great place to have a drink and a bite to eat in an atmosphere laden with New York's Bohemian past.

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

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

Nikola Tesla's former home contains an homage hidden from plain sight.

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

One of New York's best collections of pinball is hidden in a secret bar in the back of this laundromat.

A Pythagorean funhouse that tries, successfully, to prove that math is the coolest thing ever.

Order scoops of pandan, lychee, and black sesame at this family-run institution.

This lower Manhattan bar is set up in an old bank vault that rests beneath a skyscraper that hides even more historic splendor.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

One of the city’s oldest watering holes was originally the home of a famous James Brown (not that one).