The birthplace of Appalachia's only first lady, who some have dubbed the United States' "first female president."

A natural spring situated on the grounds of the Hawthorne estate.

Once damaged by Hurricane Agnes, this bridge is now on the National Register of Historic Places.

Outside a small brewery, a Gothic fountain that once provided water to thirsty horses.

American involvement in World War I officially ended in 1921 in New Jersey, three years late and thousands of miles from the battlefield.

A billionaire heiress' menagerie of animals were lovingly laid to rest on the grounds of her former estate.

This war hero's old shop remembers the fine line between medicine and quackery during the Revolutionary War.

This stately building in Alexandria, Virginia was built by Freemasons to honor one of their most famous members.

George Washington once stopped by this house for dinner.

A lawn full of retired spacecraft on display at one of NASA's first research labs.

The longest-covered bridge in the state of Maryland.

The tombstone of the founder of the lost town of Ogletown is now stuck inside a traffic median.

One of the oldest surviving Swedish-American homes in the United States.

During the American Revolution, this mansion hosted failed peace talks between the British and Americans.

Once America's longest-manned military fort, now an abandoned hulk.

This abandoned artificial island off the coast of New York City is now home to dozens of harbor seals.

On the hills of Bay Ridge stands a house straight out of a fairy tale.

A one-ton statue of Steve Rogers beautifies the entry to a Brooklyn Bed, Bath & Beyond.

Dine on old-school red sauce fare at a former mob hang out and film set for The Sopranos.

The oldest Dutch colonial stone house in New York City is a hidden gem on the border of Brooklyn and Queens.

This city park was once a lookout point for George Washington’s army during the Battle of Brooklyn in 1776.

An old quarry transformed into a recreational and cultural space.

View the ancient remains of buildings and the ancient "River of Hades" before hopping on a train.

Buddha figures are carved into volcanic rocks on the seashore of Yamagara Prefecture.