This once-palatial plantation may have been the site where a draft of the Declaration of Independence was written.

The final resting place of two (or three) presidents, one vampire, and 18,000 Confederate soldiers.

A secretive collection featuring objects that were designed specifically for U.S. intelligence operations.

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.

An absolutely beautiful 200-foot stained glass installation traces the evolution of knowledge.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

A tall smoke stack and boarded-up buildings are all that's left of the pioneering plant.

Legend has it the commander of the defenders drew a fateful line in the dirt with his sword just before the final battle.

Soldiers honored the beloved Pat with a special grave.

Modern technology and live displays tell the story of the Pacific during WWII for the Internet generation.

This museum showcases the history and contributions of the U.S. Army to the medical industry, both on the battlefield and off.

Three hundred years of preserved Spanish colonial history in San Antonio.

A National Historic Landmark with a scenic clock tower and park filled with deer and peacocks, plus a military museum.

A modernist landscape of water and sci-fi concrete.

An emerald-green grotto just a short trip from Austin.

A recreation of the doomed ocean liner in the middle of the Smoky Mountains.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

This replica of the Greek structure is in the heart of Nashville.

Home of an evil witch famous within southern folklore.

Enormous lake at the bottom of a unique cave system.

Paths are maintained, but trees have taken over plots.

Charleston's historic city jail once held everyone from pirates to Civil War POWs.

Oldest unrestored plantation house in America that is open to the public.

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