Atlas Obscura is organizing trips! Join us on an adventure »
Today Only: 50% off Atlas Obscura books and calendars at Barnes & Noble »
Loading map...
Bowman's Hill Tower
New Hope, Pennsylvania

Bowman's Hill Tower

This stone tower marks a lookout point over the historic Washington Crossing, and maybe some buried treasure.
40.3263, -74.9381
Doylestown, Pennsylvania

Mercer Museum and Fonthill Castle

Eccentric concrete mansion and museum designed and built by hand from the inside out.
40.3069, -75.1283
Old Jail Museum
Jim Thorpe, Pennsylvania

Old Jail Museum

This jail which was in service for over a century is now open for curious visitors.
40.8636, -75.7465
Cave Entrance
Kutztown, Pennsylvania

Crystal Cave

In which a local geological marvel becomes a quaint roadside attraction.
40.5276, -75.8424
Upper Black Eddy, Pennsylvania

The Sonorous Stones of Ringing Rocks Park

Mysterious rocks that ring musically when struck.
40.5625, -75.1343
Sleeping steel in the snow
Bethlehem, Pennsylvania

Hoover-Mason Trestle

The internal railway of one of the biggest steel plants in America has been transformed into a linear park with unique industrial views.
40.6140, -75.3676
The Fireproof Building
Charleston, South Carolina

Fireproof Building and South Carolina Historical Society

Once the most flame resistant building in the country, the South Carolina Historical Society building was almost burnt down in a fire.
32.7773, -79.9309
The Old Slave Mart Museum
Charleston, South Carolina

Old Slave Mart

South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.
32.7778, -79.9284
Philadelphia, Pennsylvania

Eastern State Penitentiary

World's first "penitentiary," meant to be humane, drove men insane.
39.9673, -75.1737