The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Pop culture has helped to keep this iconic British building from being destroyed.

This London plaque marks the spot where David Bowie's famous alien made his debut.

An artistic tribute to the famous singer, just around the corner from where he was born.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

A cluttered and astounding collection of antiquities and curiosities.

Eighty million natural history specimens call this gargantuan museum home.

The quaint little store that is said to have inspired a famous Dickens novel was only given its name after the book was released.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

A new sculpture calls attention to climate change in the centuries-old city it threatens.

Two stone columns flank the grand Venice square, but there were supposed to be three.

Local legend says Isaac Newton built this footbridge without any screws, bolts, or nails.

A steep and winding road in the Yorkshire Dales passes by these deep natural potholes.

This landmark Victorian folly rewards visitors with spectacular views over the Peak District.

A striking 500-year-old mansion provides an unexpectedly sublime home for live deer and a menagerie of exotic stuffed animals.

The oldest inn in England served brew to the crusaders.

The western face was supposedly left clock-less to snub the Welsh.

Mysteriously stacked storefront paths give this medieval British town an iconic style like none other.

A former fisherman's hut deemed too small for habitation is now a delightful tourist draw.

A tiny village in Wales claims the name of a noble medieval hound slain for a crime he didn't commit.

The stately remains of Llywelyn the Great's mighty fortress.

The highest peak in Wales is said to be the final resting place of a giant killed by King Arthur.