A mountaintop space observatory that is certified dark.

Railroad came. People came. Railroad left. Town died.

Once luxurious, these oceanfront beach homes have been left to succumb to the elements as the beach is slowly washed away.

The remains of a chapel created for convenience.

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

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

The house that Frank Lloyd Wright "(shook) out of his sleeve at will" at the age of 86.

Under a playground is a little-known sealed train tunnel that likely contains the bodies of workers trapped by cave-ins.

Within this lovely Richmond cemetery lie the remains of famous Virginians and some of Edgar Allan Poe's most beloved family and friends.

This museum devoted to the gothic author holds such interesting ephemera as his socks and walking stick.

A small Richmond island dotted with the remnants of hundreds of years of history.

The only pachinko parlor in the United States.

A curious collection of oddities including a lock of Alexander Hamilton's hair and Harry Houdini's ouija board.

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

At Brandy Station, Civil War soldiers left their mark on the battlefield and the walls of this small wooden house.

This labyrinthine resting place of Black American leaders has been reclaimed by nature.

The longest navigable underground river in the United States is home to countless blind and albino animals.

A home built with marble tombstones from the graves of 2,200 Union soldiers buried in a Virginia cemetery.

Paths are maintained, but trees have taken over plots.

The first full-scale tunnel built in America is short but scenic.

This mysterious hill seems to pull objects uphill.

A hidden network of subterranean passageways lies tangled beneath Indianapolis' bustling City Market.

Home of an evil witch famous within southern folklore.

A macabre farm reserved part of its 222-acres for dead bodies, all in the name of science.