The only medieval bridge in Britain with its defensive tower still in tact.

A trough of 700 strange bronze faces runs through a narrow alley in Ljubljana's old town.

Martin Bricelj Baraga's monolithic sculpture measures the blueness of the sky, and changes color to match it.

This historic building displays the remains of a victim of the devastating 14th-century plague.

The last working windmill in the U.K. that has eight sails.

This striking observation tower shaped like a spinnaker sail is the newest icon in historic Portsmouth.

An enormous alien invades Woking, England, as an homage to the H.G. Wells classic 'The War of the Worlds.'

This WWII aircraft museum presents its wrecks like taxidermy, complete with recreations of the crash sites.

Historical etchings such as “Miserable, wild, distracted 1350" and “The Archdeacon is an ass.”

Abandoned boats decaying in the largest ship graveyard in mainland Britain.

Quaint, disturbing, and macabre objects are all on display at this intriguing collection of medical instruments from bygone eras.

This historic franken-chapel is the oldest wooden church in the world, at least part of it.

Every year locals tumble 650 feet down to the bottom of the hill chasing a Double Gloucester cheese.

This stretch of the River Severn where large waves flow against the current is the birthplace of river surfing.

After mysteriously refusing to surrender at the end of World War II this sunken submarine was only salvaged in a search for Nazi gold.

The whimsical twist of this spire was either caused by the Devil, an unexpected virgin, or lead.

One of the shortest streets in York has an especially odd name.

Visit the WWII bunker where the British won the battle for the skies.

Where the sleeping monsters of Scotland's oil industry are left to rust.

Hauled from the water's depths, Henry VIII's flagship is preserved in this capsule-shaped museum.

The biggest and deepest Cold War bunker open to the public can be found in southeast England.

The first tunnel to be dug beneath a river, repurposed as an art and museum space.

This logic-defying 16th-century Tudor manor still stands to the delight and astonishment of onlookers.

This magical museum celebrates the life and work of a seminal children's book writer (and occasional spy).