This small collection of rare books was uniquely locked up for safe keeping.

This elaborate Byzantine-style building was designed for a not-so-pretty purpose.

The fountain marks the area where hundreds of accused witches were burned at the stake.

A sweet symbol marks the place where torturous executions were once carried out.

This allegedly haunted 16th-century tower house-turned-museum exhibits thousands of spectacular objects.

If you fly into Edinburgh Airport, it's possible to spot this prehistoric site without even getting off the plane.

This modern work of art was a refreshing addition to one of the oldest theatres in the city.

An artistic interpretation of the history of a Scottish park, combining poetry with anthropomorphic animals.

A rare and unique example of an 18th-century door latch calls this restaurant home.

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

A remnant of the Roman army's presence on the coast of Scotland.

This is the largest cemetery in Ireland and the first cemetery museum in the world.

The Grand Lodge of Ireland is one of the oldest in the world, full of fantastical, elaborately themed rooms.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

An Irish church where an 800-year-old mummy is reaching out of his coffin as if to shake hands.

The whiskey producer's archives includes a historical list of infractions committed by and associated penalties exacted upon employees.

A famous burial ground with a history both grim and literary.

English antique dealers with a taste for the unusual.

One of the world’s leading and most extensive archives on the Holocaust, the Nazi era, and genocide, this collection includes published and unpublished works, press cuttings, photographs, and eyewitness testimony.

This once-controversial and slightly confusing statue of Achilles was built out of captured cannons.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

An unusual sand beach in the middle of a forest.

This innocuous-seeming building is actually the remnant of a major wartime brothel.