A historic home with ties to the abolition and suffrage movements.

The dairy farm in upstate New York where nearly half a million people gathered for three days of peace and music in 1969.

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

Pluto is still considered a planet in Ithaca, New York.

Captain America, Sub-Mariner, and the Human Torch were all born in this art deco Manhattan masterpiece.

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

A sculptural commentary on capitalism pokes up from the East River.

Phil Mortillaro uses keys to bring art back to the Village.

Built hundreds of years ago this downtown iron barrier once protected a much despised king.

Commemorating the spot where the famous scientist fed his pigeons.

A small peaceful park and waterfall tucked amid the urban grind of Midtown Manhattan.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

A curious fountain that has no water and includes Satan, a crab, and 9 giraffes.

Unrepaired walls from a 1920 anarchist bomb attack.

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

In upstate New York, gorgeous waterfalls and a watermill are slowly being reclaimed by nature.

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

New York City's smallest piece of private property.

The "Seinfeld" diner.

An 18th-century townhouse that once hosted guests of the president.

One of the last mosaic tile facades found in the city.

While most wind tunnels test scale models, the "Cave of Winds" was large enough for actual airplanes.

Largest Roman Catholic church in North America.

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.