A town trapped in time - 1958 to be exact.

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

A Manhattan Episcopal church with an eerie underground crypt.

An odd, ancient window that may have once been part of a brutal prison is embedded in the side of New York's Police Plaza.

This lavish room at NYC's French Embassy is a rare relic from the end of the Gilded Age.

Walk into the 19th century without leaving Brooklyn.

Red frames showcase remnants of one of New York's original subway stations.

The one-time epicenter of American songwriting is now a little remembered Manhattan commercial block.

The site of the deadly Triangle Shirtwaist Factory Fire.

In October 1856, Harriet Tubman escaped arrest at this site while attempting to reunite an enslaved woman named Tilly with her fiancé.

A Manhattan courthouse hides a small but scathing memorial to Holocaust injustice.

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

An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

A celebration of capitalism in Midtown.

Where the legendary Orson Welles got his theatrical start before "Citizen Kane."

Where now stands a 42-story condominium tower of marble, glass and steel was once the central market of New York’s slave trade.

A staggering collection of photographs depicting medical, social, and historical change.

Relics given to a Manhattan church to avoid seizure by the Italian government.

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

This speakeasy continues the Prohibition-era legacy of Harlem's jazzy Swing Street.

A discreet little stairway on St. Nicholas Avenue leads to a quaint and unexpected cobblestone street of 19th century wooden rowhouses.

Unrepaired walls from a 1920 anarchist bomb attack.

The first museum in the United States dedicated entirely to posters.

New York City's only radical feminist independent bookstore.