A town trapped in time - 1958 to be exact.

A forgotten relic from New York's bygone trolley system hides in plain sight under a bridge.

Manhattan's Thirteenth Avenue was made on landfill then deliberately destroyed — apart from one small, obscure block.

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

Rat sculptures try to infiltrate the Graybar Building in an architectural tribute to New York City's nautical history.

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

A crumbling staircase in upper Manhattan is all that remains of one of the most important sites in sports history.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

The notorious headquarters of a corrupt political machine.

Walk into the 19th century without leaving Brooklyn.

The site of the deadly Triangle Shirtwaist Factory Fire.

Abandoned 19th century homes once occupied by naval officers, soon to be demolished.

Spike Lee's provocative film is officially honored right where it was made, the first time a work of art was used as a secondary street name.

Touching mementoes from those who didn't make it back from World War I still hang in one of New York's oldest bars.

Unrepaired walls from a 1920 anarchist bomb attack.

A bit of retro transportation flair preserved in the world's largest department store.

Avoid gangster interaction while window-shopping.

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 clock set into the concrete outside a Manhattan jeweler has been telling time underfoot for over a century.

A celebration of capitalism in Midtown.

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

A dilapidated dock tells the story of Titanic's missed arrival.