The highway's southernmost spot is a beloved local attraction.

A monument celebrating the idea of reaching inaccessible places.

The world's longest known cave system.

After a water tower painting was accused of being an ad, a simple fix was made that gave the city a motto.

Town full of spiritualists, some of whom are mediums, is still in full swing after 130 years.

The fine fabric handwoven at Biltmore Industries was once coveted around the world.

A historic dam made famous for its turbines and feature in a Hollywood classic.

This winding road of 318 curves is a must-visit for (careful) motorcycle and sports car enthusiasts.

Step back in time on this preserved 1800s farm.

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

An abandoned town is hidden in Great Smoky Mountains National Park.

Over 20,000 sets of spice shakers reveal the surprisingly telling history of our most basic spices.

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

The world's tallest doric column is this Ohio monument to a naval victory in the War of 1812.

World's largest Christmas store.

The longest structure of its kind ever built in Michigan.

The park is home to the United States's only still-operating Dutch windmill.

An unlikely beach paradise of giant sand dunes lies between two lakes just a few minutes from Michigan's cherry country.

A comedy troupe's collection of bizarre humor.

This 19th-century ghost town offers a stunning view of Lake Michigan and a journey through the region's industrial past.

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

Two dozen rescued bears roam (mostly) free at the largest bear ranch in the U.S.

This lighthouse and shipwreck museum keep a torch burning for the memory of the SS Edmund Fitzgerald.

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