The handsome statue is a tribute to the post riders who traversed 52 miles of tough Arizona terrain.

You can spend the night as an honorary lighthouse keeper in this quaint, historic beacon.

This storybook New England home is actually a decommissioned lighthouse.

The only surviving fragment of the lost Narragansett Pier Casino.

This lighthouse was witness to the end of WWII hostilities and now collects creepy cairns.

The remains of a community that was forced to move for a dam that never materialized still rot in this Pennsylvania park.

A planned settlement in Pennsylvania once housed the aristocratic refugees of the French Revolution.

Board a mine car and descend the #190 slope 300 feet underground into the Clark Vein of coal.

An abandoned stretch of highway, deteriorating next to the operational one.

This Art Deco service station has been providing tune-ups and turning heads for close to a century.

This titanic java kettle is one of the many kitschy landmarks located along America's OTHER famous highway.

Once the "Eighth Wonder of the World," this iron railroad bridge was decimated by a tornado.

All that remains of one of the Civil War's more deadly POW camps is a simple flagstone.

Dedicated to the art and science of glass in equal measure, this space is as much laboratory as museum.

One of many reminders of Tesla's scientific contributions overlooks the falls which inspired him.

Genesis of modern hydroelectric power.

This sculpture of a fisherman spent six years at the bottom of the Schuylkill River.

America’s smallest national park site is the former residence of exiled Polish national hero Thaddeus Kosciuszko.

Contrary to popular belief, this secluded statue doesn't represent Pennsylvania's founder.

Alexander Hamilton’s creation caused quite a bit of controversy.

South Philadelphia is home to Keith Haring's only surviving in situ collaborative public mural.

This elaborate towering structure was once famed for its revolutionary height.

Yo, Adrian!

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.