A self-funded cemetery with a long list of inhabitants.

Come for the flowers, stay for the bats!

Originally built in 1869, this castle is currently part of Felician University's campus.

It's home to the antenna that received the first images of Neil Armstrong walking on the moon.

The "Seinfeld" diner.

One of the largest Native American shell middens stands 30 feet tall.

An aviation relic that made coast-to-coast travel possible.

These mysterious ruins are hidden amid this sleepy coastal city.

Once considered a marvel of engineering, this 107-mile canal played an integral role in building New York City.

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

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

Giant busts of 42 U.S. presidents sit, crumbling in a field in Virginia.

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

Hidden in plain sight on the Hudson River is an abandoned train station where nature has taken over.

Now abandoned, the first public health hospital in the U.S. saw more than one million immigrants from around the world.

Seven golden statues rise into the sky from sculptor Victor Victori's New Jersey front lawn.

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

This old-fashioned candy shop, ice cream parlor, and diner served as the setting for one of TV's most controversial series finales.

Once in a state of dilapidation, this candy-inspired fortress is now being revived.

Tucked behind New Jersey's abandoned Gingerbread Castle lie the eerie ruins of a once-flourishing paper mill.

The highest point in New Jersey is marked by a massive, if simply named, obelisk.

Thomas Jefferson's estate is home to hundreds of varieties of historic fruits and vegetables.

A "hospital" where people went to be quarantined, die, and be buried in the yard.

North America's oldest authentic African Village.