This temple was constructed entirely by Roman soldiers.

This tower was created by the area's vicar as a shelter for exhausted travelers, complete with a fireplace and breathtaking views.

These Roman ruins in England’s Lake District are 2,000 years old, but look pretty good for their age.

This 17th-century pub once had a hole in its wall so the neighboring blacksmith could easily access beer.

The rust covering this old mine's abandoned buildings matches the red pigment it once produced.

One of the highest Roman forts in Britain is set amid dramatic scenery on a notoriously difficult road.

This beautifully situated lakeside Roman settlement was likely built during the reign of the Emperor Hadrian.

The Devil’s Porridge tells the story of HM Factory Gretna and the munitions girls who mixed deadly chemicals.

A 30-acre garden inspired by the principles of modern physics.

The former seat of power for the Balliol dynasty.

An incarceration museum on the spot of possibly the oldest prison in England.

A former church that has been chronicling the Scottish island of Islay's rich history since the 70s.

A late 18th-century jail.

A prison with a more than 200-year history.

This museum offers a glimpse into early 20th-century Glasgow life.

The unpredictability of this pendulum's movements has drawn visitors to this magnificent church for decades.

A rare example of a gritstone cross in this region of the United Kingdom.

Before firefighters, villagers relied on this simple hook to save their thatched cottages from a fiery doom.

This unusual 15th-century house of worship once catered to those who sought its healing properties.

One person's collection from the era.

This centuries-old mansion was the home of the noted 19th-century diarist Anne Lister (aka “Gentleman Jack”).

This meticulously reconstructed early medieval settlement offers an immersive experience of daily life in an Anglo-Saxon community.

In the middle of a barren moorland, the remnants of a lost British Space Age stand like a 20th-century Stonehenge.

An Anglo-Saxon cross inscribed with possibly the oldest written work of English literature.