A mysterious stone embedded at the base of a historic Boston building.

Narrowest house in Boston.

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

The site where Charles Dickens gave his first public reading of "A Christmas Carol" in the US.

The longest enclosed pedestrian bridge in the world spans 14 lanes of traffic and six rail tracks, all while lighting up the night sky.

Stay in a room with a view... of the bottom of the ocean.

This spiny beast guards an artist's village while vying for the title of largest lobster in the world.

Giant busts of 42 U.S. presidents are sitting in a field in Virginia.

The birthplace of American international flight service has been turned into a celebrity's microbrewery.

A monument celebrating the idea of reaching inaccessible places.

Florida's oldest bar was once a morgue, complete with a hanging tree and gravestones.

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

A giant ball made from pieces of an old Jeep.

This public park was the site of the largest civilian disaster of the Civil War.

The residents of the Neighborhood of Make-Believe live without much fanfare within the Pittsburgh Children's Museum.