A former Confederate hospital serves as a remembrance of wounded and dead soldiers.

This museum devoted to the gothic author holds such interesting ephemera as his socks and walking stick.

This beautiful vintage movie palace has seen little change in form or function since the 1920s.

This 29-ton granite ball spins around at the slightest touch thanks to a scientific phenomenon.

A small museum along the Susquehanna River is home to a rich collection of Native American artifacts.

An enormous warehouse filled with parade floats collected from over 50 years of patriotic celebrations.

The Home and murder site of the witch of Rehmeyers Hollow.

This Virginia town has been famous for its fried chicken since the 19th century.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

More than 500 unique and specially designed cases collected by D.C.'s "Harmonica Case Man."

An amazing example of early-20th-century architecture, this church features marble transported from Utah.

A historic estate packed with George Washington's heirlooms, and its own nuclear bunker.

The Byzantine, pre-Columbian, and medieval art at this stately mansion are some of the most under-appreciated collections in D.C.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

This schoolhouse for Black American children is one of the oldest remaining in southeastern Ohio.

A girls' boarding school inspired by the Chicago World's Fair, once abandoned, now restored to strange and scenic glory.

Bubbling up from deep underground is the warm crystal clear water that fills the Warm Springs Pools, America's oldest spa.

This retired stagecoach tavern is the oldest building in Cleveland.

Hear, smell, see, taste, and touch history at this immersive Civil War hospital.

A towering cemetery monument honors a man who threatened to expose the Freemasons and paid with his life.

The 18th-century church's stained-glass windows tell the story of the Haudenosaunee people.

Genesis of modern hydroelectric power.

A preserved factory in the "Home of the Carrousel" is now a museum dedicated to the classic wooden ride.

This massive melon is a recreation of a similar gate from the Pan-American Expo.