The taxidermied remains of Charles Dickens' pet raven, which helped inspire one of Edgar Allan Poe's most famous poems.

Once the "Eighth Wonder of the World," this iron railroad bridge was decimated by a tornado.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

A stone arch leads to a cavernous 1930s spring house tucked away in the Pennsylvania woods.

Sail through this subterranean show cave that is home to a legend that would go on to name nearly everything around it.

A toxic ghost town sitting atop a massive coal fire.

World's first "penitentiary," meant to be humane, drove men insane.

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

A unique home built by Andrew Jackson Caldwell that also served as a military hospital.

A pharmacy built in the shape of a mortar and pestle, now resembles a fancy cocktail.

A full-scale replica of a 1774 colonial settlement in Kentucky.

The first KFC is on the National Register of Historic Places.

Kentucky's longest operating jail is now a spooky spot to spend the night.

An enormous goose sits atop this nest-shaped home.

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

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

An enormous natural sandstone bridge in Kentucky.

The world's longest known cave system.

A gas station has taken the place of the home of the 19th American President.

This tower-tomb honors a president who only held office for a little over a month but dedicated his life to his country.

A real flying saucer, contracted by the U.S. Air Force.

Deep scars on the earth left by the Ice Age.

Take a drunken tour inside the world's largest known geode.

Where beautiful signs live on forever.