Medical history museum featuring a lovely doctor's office from the 1800s.

The heroic sled dog of the 1925 serum run is preserved in taxidermy.

Unique collection containing a wide and curious range of contraceptive items.

The headquarters of a secretive order is also a beautifully-designed park.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

The largest arcade museum in the world chronicles the golden age of video games which ended promptly in 1987.

Narrowest house in Boston.

World's largest cave was only discovered in 1991, and now offers tours to the public.

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

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

Dedicated to the history of the health sciences.

A pair of large white marble lions guard this stretch of the Mojave Desert, and it is utterly mysterious how they got there.

The former locus of Boston's high culture has been shuttered and buried for over 70 years.

In the depths of the Everglades, one man has dedicated his life to studying the elusive Skunk Ape.

Former utopian colony based on the belief that the universe exists in a hollow sphere.

This legendary "evil" doll has been haunting the citizens of Key West for over 100 years.

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

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

True to its name, this bouncy walkway may be the world’s smallest suspension bridge.

The grave of Mary Nasson is shrouded by witchy legends.

This corn maze so big you may want to pack a lunch, and possibly a flaregun.

A faux European lane smack dab in downtown L.A.

The first spinning jail built in the United States is the only one that still turns.

Constant erosion has created a surreal landscape of bleached and preserved fallen trees.