Amid the marketing blitz of modern Times Square is an elegant holdover from its showbiz glory days.

A simple midtown bar was once the home of a secretive and exclusive club staffed by "bunnies" under Hefner's strict rules.

This study room in the New York Public Library saw the creation of one of contemporary America's greatest traitors.

Recovered suit of a cannibalistic West African gang.

The tiniest little stage in New York.

Test your business savvy and play the market for cocktails at this stock exchange-inspired watering hole.

Built hundreds of years ago this downtown iron barrier once protected a much despised king.

The notorious headquarters of a corrupt political machine.

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

Hundreds of antique bank vault locks on display in New York City.

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

There’s a secret bunker inside the Brooklyn Bridge, but the city won’t say where.

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

A whimsical, but often overlooked clock in Park Avenue.

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

This collection of grinning ephemera has grown from basement to Brooklyn.

Unique antiquarian shop specializing in globes, maps, and prints.

Cryptic messages embedded in the New York City sidewalk.

Bowl in splendor, if you're lucky.

Reverend Jen's unique museum/living room showcases her troll collection.

This Wall Street bar was once a hub of revolutionary activity where Washington famously bid farewell to his troops.

A dark, dank room in subterranean Manhattan was the site of a ghastly murder.

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

The "Seinfeld" diner.