One of Savannah's oldest and most haunted cemeteries, featuring graves desecrated by Sherman's Union Army.

The ruins of a once-thriving sugarcane plantation that was burned in the Second Seminole War.

A replica of one of the more than 15,000 civilian lookout towers that lined the U.S. coast during World War II.

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

A building so large that it has its own weather.

An 18th-century Spanish watchtower made entirely of seashell and concrete.

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

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

The resting place of a Civil War celebrity's amputated limb.

Experience what life was like in Ireland during the Viking and medieval ages.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

The ruins of an 800-year-old monastery boasts the tallest round tower in Ireland.

The ancient tomb acts as a calendar that keeps perfect time.

An ancient neolithic tomb that only sees the sun twice a year.

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."

Nature's biggest mammal swims in landlocked Oklahoma.

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

A wonderful display of arts and crafts handmade by local artisans in the Southern Appalachians.

Gnarled canopies of pink and purple wildflowers arch over the trail to the summit.

This rare basilica nestled right in downtown Asheville is an architectural marvel, inside and out.

Practice your Dirty Dancing lifts in the manmade lake where Johnny Castle himself did.

This Transylvania County city is home to a rare white squirrel population that is descended from an escaped carnival animal.

The U.S. Supreme Court's secret Cold War relocation facility in the mountains of North Carolina.

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