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

Live long and prosper in Tennessee.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

A recreation of the doomed ocean liner in the middle of the Smoky Mountains.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

This replica of the Greek structure is in the heart of Nashville.

Visit this playground of waterfalls, caves and sinkholes.

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

This structure among the trees was the result of divine inspiration.

Home of an evil witch famous within southern folklore.

Enormous lake at the bottom of a unique cave system.

This 19th century granite fortification is one of the most well preserved forts in New England.

New England's tallest light house stands on an island with a history of cannibalism and death.

True to its name, this bouncy walkway may be the world’s smallest suspension bridge.

The grave of Mary Nasson is shrouded by witchy legends.

The eccentric mansion of one of the most popular horror authors of modern times.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

On the right bank of the Grand River a plaque remembers an imaginary painter who once awaited his youth.

The writing studio of an American adventure author, built in the style of a medieval castle.

This shallow cave got its name from copious amount of human bones found inside.

One man’s vision of living among dinosaurs credits Jesus Christ as the engine of biological evolution.

A sealed test tube said to hold Thomas Edison's dying breath was given to the inventor's friend and mentee, Henry Ford.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

Hell on Earth is actually a small town in Michigan where anyone can be mayor for a day.