A museum dedicated to exhibiting remarkable outsider art.

The United States' oldest Episcopal church still in active use.

A glimpse into the sacrifices of military members during World War II.

The Virginia home of one of the signers of the Declaration of Independence is being preserved with a unique glass facade.

This modern castle sat empty for decades before a fire inspired its builders to complete its luxury halls.

Enormous lake at the bottom of a unique cave system.

This replica of the Greek structure is in the heart of Nashville.

Mile-long cave system near Great Smoky Mountains.

A recreation of the doomed ocean liner in the middle of the Smoky Mountains.

In one of America’s oldest mountain ranges, a long-awaited section of a scenic highway is now open to the public.

A key producer of charcoal iron in the early 1800s, the structure still stands today.

One of the Cemestos prefab homes built to secretly house thousands of Manhattan Project workers.

This limestone outcropping was once a ceremonial site for ancient Native Americans.