This large cemetery is known as the museum of granite sculptures.

An old trolley bridge was converted into a breathtaking garden bursting with colorful flowers.

Over fifty whirling pools left by the glacial age.

A Manhattan Episcopal church with an eerie underground crypt.

An unusual and eclectic collection of local historical memorabilia.

In the power of this waterfall, Alexander Hamilton saw the potential for industry.

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

This Fifth Avenue church has long been the favored worshiping place of Broadway actors and vaudeville performers.

Step into a pastel time capsule where candy is truly dandy.

Parking garage where Bob Woodward met Watergate source "Deep Throat."

This unique historical monument features large concrete spheres designed to resemble fallen stars.

Recorded as the first person buried in Arlington Cemetery.

In what is rumored to be an intentional act of spite, this memorial almost completely obscures the nearby grave of a senior officer.

A gift from Scotland to the United States in memory of the 270 lives lost when Pan Am Flight 103 exploded over Lockerbie due to a terrorist bombing.

Decades before the scandal, this staircase on the river was a literal "water gate."

An overlooked memorial honoring the local Washington residents who died in World War I.

According to legend, this tomb holds the secrets to time travel.

Those belting out show tunes might not realize this piano bar marks the site where Thomas Paine died in 1809.

The oldest living tree in Manhattan comes shrouded in sinister legend.

This slender three-story building has also had several famous residents.

A New Jersey state park that was once Napoleon's brother's sprawling estate.

The Brigadier General was so afraid of being buried alive that he had a buzzer installed in his mausoleum, just in case he woke up.

A museum celebrating rare American motorcycles where everything runs—and none of it quietly.

Designed by Horace Trumbauer in 1893, this Gothic-style castle is now a home for academics.