One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

The site of Paul Revere's historic two lantern warning.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

A castle inspired by medieval architecture is hidden in the woods of Connecticut.

This bar hosts an ever-evolving napkin art installation devoted to an American president.

This quirky curiosity shop takes its cues from the world's bazaars.

This 5-by-6-foot wooden hut is the smallest historic post office in the U.S.

A historic dam made famous for its turbines and feature in a Hollywood classic.

This winding road of 318 curves is a must-visit for (careful) motorcycle and sports car enthusiasts.

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

A rapidly disappearing authentic bit of the old south.

The remains of a ruined mansion memorialize the 1906 earthquake.

The giant pair of sexy legs sticking out the window of this costume store have become its main draw.

The trials and tribulations of marking Poe’s grave.

A historic hotel that made a cameo in Hitchcock's classic film has no intention of letting guests forget its fame.

This giant head is all that remains of a once proud statue that survived an earthquake but not a fall off of a wagon.

Gold Rush-era tombstones line the park's paths.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

A huge musical instrument played by the ocean.

The stones that traveled from Spain to eventually become a holy place for San Francisco's nature worshippers.

The lush coastal city of Astoria is riddled with forgotten secret sidewalks.

This unassuming cheese empire in rural Oregon churns out more than 150,000 pounds of cheese each day.

Oregon's unexpected high desert, displaying layers of time in a colorful show.

Statues of Ramona Quimby, Henry Huggins, and Ribsy the dog in the park where their adventures "really happened."