Grand architectural relics gain a new life in this Pennsylvania warehouse.

Inside a Scottish castle hangs the tattered remains of a flag with murky origins and supposed magic powers.

A museum dedicated to firefighting in a city that was crucial to the modern history of the profession.

A 600-year-old elm tree with a built-in seat and thatched roof.

A watchhouse constructed from tombstones, to make way for a burial pit, for the victims succumbing to a deadly disease.

This vessel is the final ocean-going paddle steamer in the world.

Enter the cabin of a life-sized Hindenburg replica.

This castle was first occupied in the 1400s and has undergone major restoration in recent times.

An occult-y, historic hotel with the World's Largest Ouija board on the roof.

A tiny museum dedicated to the world’s tallest true giant sits on an island he never set foot on.

An 18th-century religious argument etched into stone.

The raised stones in the middle of this road through Culross are relics of a 17th-century class divide.

An underground blaze turned this village into a ghost town.

Anna Anderson spent most of her life claiming to be the lost Romanov child Anastasia.

A museum dedicated to the history of electric interurban transit near the home of the first electric trolley system in the United States.

Abandoned blast furnaces are an enduring reminder of Scranton's once booming iron business.

Construction uncovered this trove of fossils, which visitors are welcome to add to their own collections.

A tragic mystery left this boy nameless for 65 years.

This sculptural piece by the artist Tom Otterness doubles as a jungle gym.

This Norman church survived the Reformation before suffering 300 years of neglect.

The lasting remains of a historic spa.

Check out the 125-pound chocolate reindeer in the back of this candy shop.

The Ryerss mansion in Burholme Park now houses a community library and a museum filled with a trove of oddities from around the world.

Dedicated to the "King of Soul."