Home of the only civilian casualty at the Battle of Gettysburg.

This covered bridge was used by both Union and Confederate troops during the Battle of Gettysburg in 1863.

Historic barracks utilized during both the Revolutionary War and the Civil War.

According to local history, this cast-iron canine was nearly melted down for bullets during the Civil War.

A Civil War Museum with some notable medical antiques.

Washed out by the Johnstown Flood in 1889, the surviving portion of the original two-span bridge now resides at Fishing Creek.

Unannounced visitors are now welcome at the site of the largest Prohibition-era bootlegging operation in the region.

A pre-Industrial Age iron furnace and the site of a nearly-forgotten piece of Black history.

Once damaged by Hurricane Agnes, this bridge is now on the National Register of Historic Places.

This rusted car found in Petrified Forest National Park's Route 66 exhibit may be the most photographed abandoned car in the country.

A cozy bookstore is tucked within an old gold mine shaft beneath the cafe and ice cream shop.

Where the writer penned his famous story about a jumping frog.

This historic steamboat is scuttled just a few hundred feet from where it was built over a hundred years ago.

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

This medieval castle was home to a known tyrant and features several hidden passages.

Destroyed numerous times, this centuries-old bridge has always been rebuilt with its original design.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

This constitutionally sound Muffler Man harkens back to the days these attractions were a must-see.

The graffiti-covered remnants of a former triangulation station are balanced precariously on this California peak.

One of the largest free-standing structures ever built, this dirigible hangar is now simply a giant skeleton.

Enormous crabs, bioluminescent jellies, and other amazing creatures from the ocean’s depths—some of which are in an aquarium for the first time ever.

Hopeless romantics will swoon over the sweet story behind this bright and colorful home.

Every year, over 25,000 monarchs overwinter in Pacific Grove.

Pay your respects to three butterfat queens.