The greatest real estate coup of all time.

Manhattan's deadly West Side railroad, which killed hundreds of New Yorkers, is remembered by this simple plaque.

The last living thing to come out of the rubble after 9/11 is now a symbol of hope and resilience.

This enormous banquet-themed artwork honors over 1,000 notable women throughout history.

A plaque immortalizes the spot where the early American spy said his famous last words: "I only regret that I have but one life to lose for my country."

The notorious headquarters of a corrupt political machine.

Manhattan's lighthouse, erected at the insistence of the unsinkable Molly Brown.

The only home that Alexander Hamilton ever owned has a history almost as troubled as his own.

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

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

The oldest operating apothecary in the US has treated everyone from Thomas Edison to Mark Twain.

A room in New York City that contains 250 cubic yards of dirt worth a million dollars.

New York City's smallest piece of private property.

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

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

Try not to get slimed in Tribeca.

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

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

The South's nickname was supposedly born at a former bank in New Orleans' French Quarter.

This Art Deco airport was once deemed “the air hub of the Americas.”

A little piece of Paris in the sultry south of the U.S.

Parts of the civil rights movement unfolded in this historic eatery, helmed by the "Queen of Creole Cuisine."

The oldest family-run restaurant in the United States is a living museum of New Orleans dining history.