The museum chronicling a treasure hunter's dream, fulfilled.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

A monument celebrating the idea of reaching inaccessible places.

The famous boat that once ferried Bogart and Hepburn still floats in Key Largo after being abandoned for years.

For 32 years the famous Ringling Bros circus troupe spent winters in this sunny spot in Florida.

A bizarre roadside attraction and the first instance of miniature golf in the world.

The largest earthwork effigy in the world.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

This seemingly cursed monument is dedicated to one of Canada's great war heroes.

The seat of Buffalo government is a gorgeous Art Deco palace.

A beautifully designed asylum was resurrected as a hotel and art center with a ghost story or two.

Toxic waste disaster that founded the Superfund program.

The highest point in North Carolina and the United States east of the Mississippi River, Mount Mitchell is named after argumentative explorer Elisha Mitchell.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

Walk the whole Mississippi River!

This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.

Labor provided by Great Depression-era programs restored these 25,000 acres in Tennessee.

Who needs fancy modern water slides when this giant North Carolina rock works just as well?

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

Wild lights and sound effects turn a walk through some caves into an eye-popping 1960s tourist attraction.

Enormous lake at the bottom of a unique cave system.

The secret city built by the Manhattan Project.

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

Better known as the "Body Farm," this unique research facility has been studying how human bodies break down since the 1980s.