This tiny, one-acre cemetery serves as a reminder of when the Civil War got close to the nation’s capitol.

A haunting tribute to pioneering photographer Clover Adams.

A memorial to a shareholder activist feared by CEOs around the United States.

Once a WWII supply tramway, it's now a popular & steep hiking trail.

This groundbreaking 16th-century map is known as "America's birth certificate."

A once celebrated industrial wonder now lurks in a quiet corner of Flathead Lake.

This 18th-century tower is locally iconic.

The ruins of a pre-Columbian fortress city so secure it held off the Spanish conquistadors for over 20 years.

No one knows who painted this mysterious mural in a Penn State basement.

This stone polylith serves as both a 100+ year old experiment and monument to the history of science.

This simple stone memorial remembers a secret, Geneva Convention-defying interrogation base from WWII.

National Mall monument to the inventor of the screw propeller.

A living relic that sat largely unknown for years. 

A Roman holiday is closer than you think when you use this 1916 staircase inspired by Rome's Piazza di Spagna.

See the imprints of ancient trees, burned and preserved by lava.

This scenic gorge is named after one of the most famous Bigfoot attacks in pseudohistory.

A historic neighborhood church is reborn as a psychedelic arts collective.

The last of nine massive kilns that produced many of the red bricks for buildings in Washington, D.C. and northern Virginia in the early 20th century.

The first national memorial to honor all women suffragists stands on land where suffragists were once imprisoned.

Memorial stone for GWAR vocalist, depicted in his iconic costume.

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

A small Richmond island dotted with the remnants of hundreds of years of history.

In an effort to escape the horrors of slavery, one man mailed himself to freedom.

Where three rails and three centuries of transportation meet.