A little-known ruin with a convoluted history and a fascinating latrine drainage system.

The ruined abbey includes a rare surviving example of a monastic latrine.

This Roman archeological site is hidden amid a 1930s housing estate.

This bridge once allowed Dere Street to cross the River Tees.

A rare example of the RAF’s flying spy taxi.

The first peace pagoda to be constructed in the Western world sits next to a small English lake.

A giant roundabout made up of six smaller roundabouts can befuddle the uninitiated.

This operational mill has survived centuries of destruction and construction.

6000-year-old site covered in more than 50 megaliths.

The remains of Crystal Palace Great Exhibition of 1851.

Europe's largest prehistoric mound – burial site of a legendary king?

Scattered throughout London are ancient remnants of the city's former bounding wall.

Famously misunderstood wonder of the ancient world

A fantastic castle rumored to be the birthplace of King Arthur.

A ruined castle has more than its fair share of legends and ghost stories.

The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

Besieged by war, this castle ruin has crumbled into a peaceful picnic spot.

The first archaeological site discovered by aerial photography.

One of the oldest and certainly best preserved Cistercian abbeys still in existence.

This shell of a historic manor house on the Isle of Wight is said to be the most haunted site on the island.

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

Twice a day this ancient path disappears with the tides, leaving the Holy Island of Lindisfarne out to sea.

This 15th-century fortification was built to defend bunnies.

Henry VIII's forgotten castle was built by the gunpowder-obsessed king to be defended solely by cannons.