This collection of historical artifacts and tropical wildlife waits just beneath the surface of the water.

Rumored to be the famed pirate's lookout tower, this historic stone structure is now just watching for tourists.

Submerged lava formations create incredible waterworks.

Home of the "true" equator.

If all members were present at the table, a sixth of the world's wealth would be under the same roof.

Three and a half miles of cliffs, rocky beaches, Gilded Age mansions and 40 Steps to nowhere in particular.

A herd of 150 bison live on California's Santa Catalina Island and are at the heart of an ongoing debate between environmental protection and economic expansion.

Despite being burnt down multiple times, the ruins of this South Carolina church are still standing.

Artifacts of whaling, with both its perils and adventure, are housed in this museum in a former candle factory.

Some North Carolina Cherokee have been keeping their history alive for decades with a single play.

Offering commanding views of the California coastline, this restaurant was a hub for the artists and bohemians of Big Sur.

Collecting 700 years of mechanical death-dealing, the NRA's sprawling gun museum is a revealing testament to the American obsession with armament.

Board a mine car and descend the #190 slope 300 feet underground into the Clark Vein of coal.

Nuclear waste dump site now an environmental sanctuary.

Bad farming practices caused this unnatural natural wonder.

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

North America's oldest authentic African Village.

This Big Sur waterfall drops 80 feet directly into the Pacific Ocean, and inspired the hillside house up top.

Haunting and beautiful trees, doomed to die.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

Where manatees are the snowbird vacationers in these balmy Florida springs.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

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

The most photographed house in Maine looks good enough to eat.