Stolen goods adorn the organ at Old North Church.

Exact replica of the ancient monument, but much, much lighter.

A monument celebrating the idea of reaching inaccessible places.

Visit the monolithic tomb of America's most famous general.

Memorial of the Salem witchcraft hysteria in the town of Danvers, where it all began.

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."

America's first federal monument.

Walk through the actual strap iron cells and solitary chambers of Arizona Territory’s first prison.

Honoring the famed folktale author, this California museum looks like it belongs in the Black Forest.

Elaborate series of tunnels where traces of mass suicide are still visible.

This jail once controlled by the Japanese military now sits abandoned on a remote Pacific island.

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

Giant money stones of Yap.

Tropical paradise strewn with hundreds of World War II wrecks.

Located on Guam's south shore, this small cave is named for an ancient and powerful Chamorro Chief.

The underground hideout of a Japanese soldier for whom World War II ended in 1972.

There are eight natural springs around town, each with a slightly different taste.

This quirky hot springs town known to locals as "T or C" was named after a radio show.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

Natural catch-basin rocks covered in thousands of drawings spanning many millennia.

An old saloon in the West filled with history, and according to some, a few dozen ghosts.

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

A living snapshot of a different time in America is preserved and maintained by a community of volunteers.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.