The local community brought back this land to transform it into a nature preserve.

A pre-Industrial Age iron furnace and the site of a nearly-forgotten piece of Black history.

Unannounced visitors are now welcome at the site of the largest Prohibition-era bootlegging operation in the region.

The Cold War-era "underground Pentagon" is a sprawling subterranean hideaway for the Defense Department.

A piece of the Ludendorff Bridge, also known as Remagan Bridge, calls this military base home.

One of the Treasury Building's original columns now sits as a garden monument in the middle of a busy military base.

Anna Anderson spent most of her life claiming to be the lost Romanov child Anastasia.

The only museum outside of Australia dedicated to exhibiting the artwork of Indigenous Australian artists.

An abandoned textile mill that is now home to art and concerts.

The story behind the mysterious symbol painted in front of the historic university's famous Rotunda.

Hidden for 165 years inside a building designed by Thomas Jefferson are the remains of what may be America's first educational chemistry lab.

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

Edgar Allan Poe's old dorm is now a shrine to the author's legacy.

This abandoned church languishing for decades is now one man's passion project and subject of paranormal investigators.

A bunker "with enough U.S. currency to replenish the cash supply east of the Mississippi" in the event of nuclear war now protects nitrate film.

An eponymous directional signpost erected by the first president of the United States.

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

The Grand Ole Opry's big voice came from a small home in rural Virginia where she was eventually buried.

Designated as an Underground Railroad research site.

Every autumn, this grove of living fossils erupts in a blaze of brilliant golden-yellow leaves and stinky fruit.

In 1932, Americans honored their first president's 200th birthday by planting trees.

A small, forgotten prison cemetery marked only by a wrought-iron fence and eerie depressions left in the ground.

A memorial dedicated to a highly decorated Marine and Korean War veteran, who also happened to be a horse.

This small museum houses rare airplanes from aviation's golden age.