This huge clock made of flowers and simple machinery was once used a political weapon.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

Catch these free-to-view artworks that span centuries in this Central Pennsylvania museum.

Two men built this castle on the Florida coast as an artistic “landscape sculpture.”

It's a pretty creepy lock-up.

Intertwined, interspecies trees which locals believe can grant boons to lovers.

Charleston's historic city jail once held everyone from pirates to Civil War POWs.

South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.

Thirteen pastel palaces in downtown Charleston add a gorgeous splash of color to the city.

Most historians agree that the so-called "Gentleman Pirate" wasn't much of either of those things.

An eerie smiling woman looms above the granite tombstones.

Must form and function forever remain at odds? Not if the Florida Department of Transportation has its way.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

This overlooked courtyard and museum celebrate Benjamin Franklin's life and achievements.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

This Las Vegas casino boasts one of only three spiral escalators in the United States—an engineering wonder.

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

Chewing gum tycoon's memorial lies perched over wife's botanical gardens on Santa Catalina Island.

An Old West film set seen in countless TV shows and movies is open for the public to explore.

The show's fictional Korean medical camp was created in the Santa Monica hills.

Malibu's first beach home features an astonishing trove of ceramic tiles.

Bits and pieces from the ill-fated Donner Party's winter cabins.

One of the most elaborate displays of Jellyfish is on display at the aquarium.

This lonesome Monterey cypress has survived centuries of wind, salt, and at least one attempt at arson.