This may be the smallest length of railway in the United Kingdom.

Only the headframes remain from this mining operation, once one of the largest in the region.

The former "holiday home" for monks at the Durham Cathedral.

Inside this reclamation yard is a unique collection of horse-drawn vehicles.

The story behind this uniquely-shaped tower involves ancient empires, local legends, and new words.

A haunted slate mine turned concert hall and a hidden fairy garden.

A unique sculpture park that features the works of several famed artists.

Despite its ornamental looks, this towering Tuscan-inspired anomaly was a masterpiece in hydraulic engineering.

This windmill is believed to be the oldest in the British Isles.

Once called "the biggest room in the world," this Victorian-era hall is so large that it contains a smaller 1970s heptagonal theatre.

This industrial gem was one of the earliest examples of a metal-framed building.

A vast archive of cultural artifacts collected from numerous expeditions across Africa and Asia.

Inspired by the colossal pyramids at Giza, this 15-foot structure is believed to be the first funerary pyramid in Great Britain.

This crumbling coast and its teetering tower are literally filled with history, but they are also at great risk of becoming history themselves.

This unique collection of lawnmowers includes vintage blueprints and automatic robot mowers.

Remarkable medieval wall paintings decorate this 12th-century, dog-friendly church.

The grounds of this Catholic boarding school are said to have inspired Arthur Conan Doyle and J.R.R. Tolkien.

The last gas-lit cinema in the United Kingdom, and perhaps the world.

When the city of Manchester built a new centralized heating network, they did it with style.

This park and coal mine heritage site is home to two of the last steam winding engines in the UK.

Believed to be the longest railway bench in the world.

The world's oldest railway bridge in continuous use.

The tallest freestanding structure in the United Kingdom.

A defensive structure built during the Hundred Years War has remained useful in one way or another for nearly 700 years.