The highest peak in the United Kingdom has a history of physics, specters, and a pilgrimage of strange objects.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

The ruins of this gorgeous clifftop castle look like something from a fantasy novel.

A church that bred legends, and served as an inspiration for the Da Vinci Code.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

The ancient latrines of the Greeks, in all their public glory.

This crumbling medieval basilica once attracted pilgrims by the thousands to collect a miraculous dust that formed above the saint's tomb.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

This famous city eluded concrete detection until the early 2000's.

A marvel of Byzantine engineering under the streets of Istanbul.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

What was once the largest NFL stadium.

The birthplace of professional hockey on the shores of Portage Lake.

Michigan’s most famous shoe tree.

This missionary's legacy looms large over the Upper Peninsula of Michigan—literally.

Dating back to the 1800s, two imposing buildings in Michigan have had countless transformations over the years.

As its grandiose name implies, this wooden dome is unsurpassed in size.

Egyptian Revival obelisks still rise over the old mine shafts.

One of the largest crucifixes in the world stands 55 feet tall in a secluded, wooded area of northern Michigan.

A comedy troupe's collection of bizarre humor.