An original apothecary from 1792.

This simple stone memorial remembers a secret, Geneva Convention-defying interrogation base from WWII.

The remnants of a wooden-hulled fleet built and abandoned in WWI, now home to a thriving ecosystem.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

Hundreds of antiquated typewriters and office machinery show the technological evolution of business.

This collection of odd proofs of concept is like taking a walk through the imagination of a Victorian engineer.

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

One of the last active volcanoes on the Eastern seaboard.

The remains of a failed attempt at medieval nerdery are hidden deep in the woods of Virginia.