One-time largest man-made structure in the world will be a park in 30 years.

An unrealized dream to wirelessly electrify the entire Earth.

The first commercial nuclear power plant constructed on Long Island.

The final resting place of Harriet Tubman and other famous historical figures.

The world's only statue dedicated to the greatest Great Dane in comic strip history.

This exhibit pays tribute to the “humble tinkerer” who invented the implantable pacemaker.

It wouldn't be long after purchasing this farm, Brown would lead his siege on Harper's Ferry.

This abandoned ironworks was once the most important military supplier in America.

Records of the dead describe the myriad odd ways people used to die.

A way to take your secrets to someone else's grave.

The flagship building of an early national restaurant chain is a superb example of terra cotta art.

A historic lighthouse steeped in rumors of ghost and pirate stories.

The schoolhouse where Jesse Merwin, the inspiration for the "The Legend of Sleepy Hollow" character, once taught.

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

A bridge commemorating the actor's legacy and his Terryville roots.

Public outcry led to this bridge's unique character which celebrates a giant frog battle and also sewing.

A gazebo that inspired the fifth episode of the "Twilight Zone" still stands in the creator's hometown

This 19th century brick building in Brooklyn stands out like the anachronistic landmark that it is.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

Little Red Lighthouse under the George Washington Bridge.

Lie in a hammock where George Washington stood.

In its day this historic fort held 100 cannons pointed in almost every direction to protect New York.

This hot dog-shaped diner has moved all around Colorado, but has never been to New York.

A natural formation that resembles a camel resting in the New Mexico desert.