One of the oldest of its kind.

An Irish Memorial commemorating those who perished due to potato blight.

A layered tribute to the work of mosaicist Isaiah Zagar.

Believed to be the birthplace of the United States Marine Corps.

The oldest active church in Pennsylvania is also the second oldest Swedish Church in the United States.

The fastest transatlantic ocean liner sat abandoned in a Philadelphia shipyard for decades.

The third-tallest lighthouse in the United States stands as a reminder of Atlantic City's early days.

This staircase in a lush tropical grotto was built by enslaved laborers and renamed to honor Queen Victoria's role in ending slavery in the British Empire.

The world’s largest underwater sculpture is found just off the coast of Nassau.

Impressive sink holes fill this untouched old-growth forest in the Bahamas.

They squeal, they nosh, they look like predators.

In paradise, feral pigs have claimed an island all to themselves.

One of the most accessible undersea plane wrecks in the world.

Where hundreds of Japanese civilians committed suicide to avoid being captured by American soldiers during WWII.

This abandoned radar site is slowly being taken back by the jungle, its mission cut short by the end of the Cold War.

Once a popular hangout spot this huge mall was left to ruin after economic crash.

An abandoned lighthouse off the beaten path, one of the few surviving pre-World War II Japanese structures, offers a beautiful view.

The pits used to load the nuclear bombs onto the aircraft that dropped them over Hiroshima and Nagasaki at the end of World War II.

A crystal clear beach surrounded by beautiful coral reefs.

A beautiful waterway tucked in the corner of a power plant.

Launchpad for the US military’s dead mouse operation to battle millions of snakes.