This statue commemorates the importance of hat manufacturing to Danbury, once known as the "Hat City of the World."

Ride the subways of yesteryear.

The highest rapid transit station in the world.

The mass grave of a heroic Revolutionary War regiment sits below an empty lot near the Gowanus Canal.

A hidden architectural treasure in New York's Brooklyn.

This once-private estate is now a dreamy, meditative garden that's open to the public.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

A spiritual vortex among the red rocks in Sedona.

Ornate "Renaissance Revival" style building.

The only surviving sidewalk clock in Brooklyn.

Neoclassical bank designed by NY architects Helmle & Huberty.

One of New York's best collections of pinball is hidden in a secret bar in the back of this laundromat.

Church featuring "high Victorian gothic" architecture.

A mass grave for victims of one of the city’s worst fires.

These century-old townhouses contain some of the first car garages built in the United States.

This preserved wilderness hides the remains of a colonial grain mill used to feed George Washington's troops.

Colloquially known as “piss alley,” this narrow street filled with tiny bars and barbecue stands looks like it was pulled straight out of “Blade Runner.”

The mysterious image is believed to show Edward Hyde, 3rd Earl of Clarendon, in a beautiful blue dress.

This taxidermy scene brings the struggle for survival in the Indian jungle to a quiet corner of a Manhattan museum.

Outstanding taxidermy dioramas showcase the grandeur of the continent's wildlife with spooky realism.

This poignant display is now a memorial to these regionally extinct species.

Commemorating the spot where the famous scientist fed his pigeons.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

Imagine having a street run right through your home, or better yet, a historic bridge three stories high.