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

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

The largest body of water in Massachusetts annihilated four small towns just to slake Boston's thirst.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

The summer home and later final residence of acclaimed American sculptor Augustus Saint-Gaudens.

The remains of Martha, the last known passenger pigeon, serve as a tool to educate about conservation.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

Golden and naked, the figure that was once the highest point in New York is all that remains of the second Madison Square Garden.

A failed piece of Orientalism has become the proud symbol of a community.

This collection honors the iconic, and proudly American lighter that just won't quit.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

This bridge was the birthplace of a unit of measurement based on a fraternity joke.

Despite a fraught and controversial history this African island holds a powerful monument to the tragedy of the slave trade.

A Texas-sized particle collider that was abandoned due to its Texas-sized budget.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

This evocatively named natural crevasse was created by a torrent of water that smashed right through a granite deposit.

Discovered by cows, these upstate New York show caves are presented with a healthy dose of psychedelic folk art.

Known as one of the most climbed mountains in the world, this barren peak is permanently bald thanks to an anti-wolf fire.

This impressive Boston holy house is the American mecca for Christian scientists.

The first evidence of some of the Earth's earliest life was found in this fossilized undersea grotto.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

The final resting place of one of the most sensational guitar players of all time was created only after his father got the rights to his music.

Unlike other abandoned asylums this empty institution welcomes visitors, just don't go in the buildings.

This tall Massachusetts folly got its name thanks to all of the purple prose its vistas inspired.