A deteriorating 1990s Girl Scout camp in a beautiful lush park on Lake Ontario.

The birthplace of America's favorite fruit-flavored mystery dessert.

Alexander Milliner, a favorite of General Washington, is interred at Mt. Hope Cemetery along with 80 other Revolutionary War veterans.

This New York estate was designed to resemble a medieval Scottish castle.

The remains of Abó, Gran Quivera, and Qurai are monuments to the long, complicated history of the Indigenous people of the Southwest.

This centuries-old pueblo church houses the body of a Franciscan friar who is said to be a rare "incorruptible" corpse.

On a dusty county road sit the ruins of a ghost town's abandoned church.

The 40-foot-tall votive candle is the largest of its kind.

Possibly the smallest church in the world floats in the middle of a pond.

A field in which God and his son Jesus purportedly appeared to a young farm boy named Joseph Smith.

Golden plates containing what would become the Book of Mormon were believed to be buried on this New York hillside.

The final resting place of Harriet Tubman and other famous historical figures.

A Roman spa buried deep beneath the City of London.

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

Only a few pieces remain of the structure that carried people and goods across the Thames for some 600 years.

The 2,000-year-old beam is tucked within the pedestrian entrance to the old London Bridge.

The ruins of a church destroyed by both the Great Fire of London and the Blitz, now turned into a peaceful garden.

On the eve of a condemned prisoner's death, this bell rang 12 times outside their cell.

The remains of the great moral philosopher reside in a university in London.

One of the oldest remaining Catholic churches in England is home to the hand of a 7th-century saint.

This overlooked street light once served as a KGB dead letter box.

The fences outside some of South London's estates are made from recycled World War II stretchers.

A 2000-year-old Roman amphitheater lies just below Guildhall Yard.

Rebuilt remains of a temple to Roman god Mithras.