This Georgian architectural masterpiece is the only cloth hall left in Britain.

Single runway interrupted by a busy road that cuts across its middle.

This ruined castle is said to be the legendary keep of a Viking princess.

Soviet intelligence had a keen interest in the Cold War linguistic school at this old Scottish airfield.

Designed to allow funerals to proceed over the River Dulnain.

Soak up some local history in this restored Edwardian era swimming pool.

Now in ruins, this castle stood for centuries and saw a number of gruesome events.

This Victorian marvel of engineering and artistic prowess is nicknamed the "Cathedral of Steam."

England's "pier at the end of the universe" unites astronomy and contemporary architecture.

Britain's oldest and biggest hole in the ground.

A 17th-century church is nestled within the walls of a 15th-century ruin.

The abandoned railway bridge stands hidden in the farmland of rural Cumbria.

A 13th-century stronghold that has fallen into ruin.

One of the earliest large-scale "hyper" roofs in the U.K. is now a derelict roadside attraction.

A half-mile-long stretch of medieval forts built after a devastating pirate attack persists amid the modern port city.

On a site with a long military history, a 1980s shelter.

A 16th-century castle unexpectedly nestled within a post-war housing development.

This tiny 1930s Art Deco airport is a beautiful remnant of a bygone era.

This ancient abbey now lies in majestic ruin behind a caravan park.

This ancient castle has been abandoned since the Edwardian conquest of Wales.

This pyramid is dedicated to all those who suffered martyrdom for civil and religious liberty in Scotland.

FIFA deemed this isolated field one of the most remarkable places to play the sport.

Believed to be the smallest castle in Europe.

This crumbling 14th century chapel became so unstable the roofing apparently collapsed during a wedding ceremony, narrowly missing the curate's head.