The lasting remains of the Balloon Section of the British Armed Forces.

An abandoned shipping control tower looks like a satellite perched at the end of a pier.

This unique style of bridge is the last of its kind and runs over the straightest canal in Britain.

This former sewage pumping station is now a fascinating museum.

These courts are the only ones of their kind in the world, made for a unique ball game that dates back to the 1700s.

This former World War II torpedo testing location is now an important nesting site for migratory birds.

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.

Collapsed television tower finds new life as a control tower for boat races.

A Paisley park where little has changed since its early 20th-century creation.

This chimney is the oldest free standing industrial chimney in Britain.

The largest offshore wind farm in the world would be even bigger if it weren't for some pesky birds.

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

This water-powered cliffside railway is one of the steepest funiculars in the world.

The father of Belfast medicine is buried in the graveyard of this 13th-century church, which now lies in ruins.

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

This small crenelated building was built by a British aristocrat who supported the American Revolution and may have named it in memory of a pivotal battle.

The remains of a 70-year-old military aircraft crash landing still sit on this Scottish hillside.

Site of the golf match between James Bond and Goldfinger.

Three stone bridges straddling the River Gowy form part of the medieval road from London to Holyhead—despite a common nickname, they're not Roman.

This round structure dotted with portals is one of several pieces scattered throughout Lancashire.

This huge coastal nature reserve in Wales was a stand-in for the Arabian Peninsula in 'Lawrence of Arabia.'

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

This stretch of beach is the site of a prime watering hole and a primate watchtower.