A self-made museum in Queens, New York continues to display the work of a sculptor known for paving his own way.

A decommissioned military complex that's now a modern industrial park.

A strangely angled West Village home is the only monument to an explosion that took the lives of three American revolutionaries.

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

A famous songsmith's custom piano, dubbed "High Society," is hidden just out of sight in one of New York's finest hotels.

One Brooklyn man's collection of life-size fiberglass statues has taken over his entire yard.

The 28-foot granite map plots the locations of 40 theaters in New York City.

This historic building housed the surviving crew members of the Titanic, who were left destitute after the wreck.

This exemplar of modernist architecture is meant to captivate and inspire students of the Cooper Union.

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

A little lighthouse in New York City, surrounded by mysterious stories of insanity-driven construction.

The most confusing clock in New York.

This small and serene place for quiet reflection on Staten Island was built in China based on the gardens of the Ming Dynasty.

This plot of old-growth forest is the largest surviving remnant of New York City's original woodland.

Salute the leader of the proletariat.

The site of the deadly Triangle Shirtwaist Factory Fire.

There must be a pun in this haystack somewhere...

America's oldest Eastern European synagogue provided the immigrants of crowded Lower East Side tenements a space of sanctuary.

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

Commemorating the spot where the famous scientist fed his pigeons.

This futuristic airport terminal was abandoned for decades before reopening as a hotel—with a vintage plane of its own parked out back.

This otherwise innocuous bodega was once the headquarters of the most feared assassin's guild in American history.

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

In the middle of downtown Brooklyn lies a 165 year old secret hidden right below the surface (closed to the public indefinitely).