One man has spent decades faithfully constructing this unique brick and cinderblock castle.

This hotel was used during the Manhattan Project to house official visitors.

One of the Cemestos prefab homes built to secretly house thousands of Manhattan Project workers.

The secret city built by the Manhattan Project.

This Tennessee manse was built so opulent that the very utilities doomed it to fail.

Crumbling ruins mark the site of a couple's grisly murder in the woods.

All that's left of the quintessential "cabin in the woods."

Kentucky, Tennessee, and Virginia meet at this point in the Cumberland Gap.

A 300-yard long natural tunnel runs through a ridge deep in the Appalachian Mountains.

An ode to "The Queen of Appalachia."

Over 200 people were buried here with only a small stone to mark their final resting place.

A failed utopian experiment for British expats in the American South is now a Victorian village frozen in time.

Visit this playground of waterfalls, caves and sinkholes.

These early tent-shaped grave coverings are unique to Appalachia.

A local scoured more than 1,000 acres for stone to create his masterpiece.

The remains of this visionary community can still be found much as it was a century ago.

This odd stone memorial remembers a loyal dog who offended the rail barons with his speed and saved his master with his pee.

Everyone and everything one man ever loved and lost, now stare into the East for all eternity.