An ode to "The Queen of Appalachia."

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

This tribute to the founding father of the American dictionary originally contained a spelling error.

The hero of the women's suffrage movement birth home is now a museum dedicated to her legacy.

See how Laura Ingalls lived on the Minnesota prairie.

In 2004, a Dave Matthews Band tour bus dumped 800 pounds of waste off a bridge and onto an unsuspecting tour boat below.

This freshwater spring fills with 10,000 gallons of water per minute.

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

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

This cave holds a surprisingly colorful variety of geological oddities.

A bypass decorated with large wooden troll carvings.

Once a speakeasy operated by Al Capone, this Milwaukee cigar bar is now a haven for ghost hunters.

A place to eat for on-the-run agents and espionage enthusiasts.

This unique park is dedicated to a favorite locally born snack line.

Less a museum than a bizarre fantasy world created by artists and engineers.

What's left of the ruins of the 1893 Columbian Exhibition, or World's Fair, also known as the White City.

A three-story tower of books about Abraham Lincoln is one of the more unusual monuments to the president.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

This Civil War monument was designed by an eccentric architect and Gettysburg veteran.

The bugs crawling down the front of this office building are almost as big as a '68 VW Beetle.

Partially submerged Buddha heads freckle Chicago’s neighborhoods.

A fitting attraction for the corn capital of the world.

The Vermont square that inspired Shirley Jackson's "The Lottery."

The building that inspired Shirley Jackson's "The Haunting of Hill House."