Resonating tubes make music from highway overpass.

This sprawling 18th-century cemetery features unique and beautiful gravestones, including one shaped like a tree.

Naturally formed white marble arch housed in an abandoned marble quarry from the 1800s.

Inspiring Herman Melville and Henry David Thoreau, Mount Greylock in western Massachusetts is the highest point in the state at 3,491 feet above sea level.

The railroad tunnel nicknamed the "Bloody Pit" for taking the lives of hundreds during its construction.