The US Navy's only submarine museum is also home to the world's first nuclear submarine.

The site of Paul Revere's historic two lantern warning.

This area was once known for being a lawless haven for rough-and-tumble sailors, earning the maritime-themed nickname "the black sea."

A former waterfront market is now in the center of town due to some interesting Boston engineering.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

Home to the Amorphophallus titanum "Corpse Flower," which is among the largest flowers in the world and also smells powerfully of rotting flesh when in bloom.

The only arched bridge made of stone on the entire Mississippi River.

Home with Gothic windows featured in a famous painting.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

The palatial McDonald's that inspired Wesley Willis.

Home to a protest movement, a bombing, and a dramatic change in labor history.

Berry Gordy Jr.'s old home was the original headquarters of Motown Record Corporation.

Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

The land is home to swimming ponies and a legendary 18th-century treasure.

Vacant Beaux-Arts buildings that serve as reminders of a beach town’s glory days.

The site where Poe “in great distress, and ... in need of immediate assistance” likely died.

The trials and tribulations of marking Poe’s grave.

Rediscovered after a century, the father of the American Navy was reinterred in something dredged up from Davy Jones’ locker.

A museum dedicated exclusively to aircraft used in the military.

The semi-reclaimed ruins of this canal were once part of an ambitious plan to reroute the mighty potomac.

A super-sized promotional trick that is now a D.C. landmark.