An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

The oldest surviving botanic garden in the United States.

Mural made of 100,000 pieces of hand blown glass, and until recently, the largest glass mural in the US.

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

The body of St. John Neumann and his collection of hundreds of relics, on display in a Philly church.

The ruined remains of a coal mining ghost town are hidden within the woods.

Memorializing an American tragedy of massive proportions.

This abandoned Victorian-style house was built in 1884.

Exact replica of the ancient monument, but much, much lighter.

A remote horde of architectural treasures fit for Indiana Jones.

Built in the 1850s, this church was of the first five churches constructed in Harper's Ferry.

A rare view of a preserved Victorian science museum.

The last of Philadelphia's wood-paved streets is now a landmark of terrible engineering.

In the early 1800s, surgery was also a show.

This little-known collection holds everything from "Dracula" notes, to the manuscript of "Ulysses," to the forged works of Shakespeare.

An astounding collection of medical specimens, including bits of President Lincoln.

Dogs, cats, horses, monkeys, frogs, and fish are laid to rest at the second-oldest pet cemetery in the U.S.

An eerie, decaying ghost town destined to fade into the forest.

One of the oldest anatomical theaters in the U.S. still in use was once the site of an infamous cadaver riot.

Fiji mermaids, mummified remains, and recreated cryptids are among the morbid oddities at this Maryland museum.