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

One kilometer of thick brass rod laid out before your eyes.

You must take the A train... to the last active cemetery in Manhattan.

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

The highest point on the island known for buildings that touch the sky.

The mummified relics of an American missionary.

From this desk Al Hirschfeld drew his influential caricatures of the 20th century's Broadway stars.

Manhattan and the Bronx have been playing tug-of-war over this former island neighborhood for more than a century.

Surrounded by low rise buildings and partially converted into an auto body shop, this marble archway is the only vestige of a forgotten Manhattan estate.

The phone booths of New York City have all but disappeared, but their remains were once found in this "graveyard," sadly now removed as well.

One of the last Jazz Age "Wonder Theaters" in New York City.

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

The legendary court where emerging basketball players gain their street cred.

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

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

Walking around West Harlem reveals a scavenger hunt of beautiful bird murals.

From scholastic to sepulchral - now under reconstruction.

Visit the monolithic tomb of America's most famous general.

One of the only single-person private gravesites in New York City.

New York City's only preserved family home from the 19th century.

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

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

Peek through the gates at this oasis from the city, full of Old English charm.

This small New York museum celebrates the mountainous artwork of a Russian mystic.