Oldest unrestored plantation house in America that is open to the public.

This tiny river island switches sovereignty every six months as part of a rare, centuries-old agreement.

Bloodstains can still be seen in this medieval church where two medics saved lives on D-Day.

An Arizona museum with a collection of pharmaceutical oddities, including a jar of a gangster's chewed gum.

This war hero's old shop remembers the fine line between medicine and quackery during the Revolutionary War.

The curiosities and wonders of pharmacy in a delightful historic building.

Robots, lasers, and whoopee cushions, oh my!

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

This 17th-century mausoleum is topped with an acoustic marvel.

This tiny man looms large over downtown Charleston.

A tomb with a window to ensure the interred wasn't buried alive.

The final resting place of the camel who served with the Confederate Army during the Civil War.

A Christian retreat founded to welcome refugees fleeing from the Nazis during World War II.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

The body of an unidentified woman, visible through a glass coffin, was discovered by accident.

What looks like a simple quaint estate in rural Pennsylvania was in the 18th century home to a small monastic community.

A stark reminder of the huge nuclear weapons plant that once stood on the site and its effect on the surrounding area.

One person's lost luggage is another person's treasure.

The thousands of shades on display — some toxic, others impossibly rare — are a library of more than just color.

Once an indicator of social class, the color blue has come to define this city on the edge of the Thar Desert.

A showcase of canine neckwear spanning five centuries of doggie fashion and function.

After covering almost 1.5 billion acres, the survey's still not finished.

This state park was once an important Native American cermonial center.

This secret cemetery where no flag is allowed to fly holds the bodies of American soldiers convicted of heinous crimes during WWII.