Lie in a hammock where George Washington stood.

The home of the first American-born saint is one of the only curved buildings in New York.

This curved Manhattan building was built to house the opulence of John D. Rockefeller's oil empire.

A dilapidated dock tells the story of Titanic's missed arrival.

Twenty-three trees, each paired with a basalt stone, line a street in Chelsea, continuing an urban project started by German Fluxus artist Joseph Beuys.

Elevated freight railway turned wildly successful urban park.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

On the Hudson resides one of the largest clocks in the world.

This evocative New Jersey statue memoralizes the Polish victims of a Soviet massacre.

The boulder on which Alexander Hamilton laid his head as he died can still be visited on the New Jersey coast.

A playground inspired by differential calculus dangles from the ceiling of the Liberty Science Center.

Infamous marsh filled with toxic waste, World War II-era London rubble, and dead mobsters galore.

The remains of a 19th century spring, and the site of an infamous unsolved murder.

Series of storm drains connected to a dark urban legend.

Edison's cast-in-place concrete houses were a failure, but way ahead of their time.