The remains of one of Wales’ great medieval buildings, with a pub in the cellar.

Long before mobile phones or GPS were available, these sentry boxes provided help for motorists in need.

According to legend, this bell once belonged to a kingdom now lost beneath the waves.

The lighthouse is on a island which is connected to another island, which is connected to another island, which is connected to one of the largest islands in the world.

An impromptu shrine appeared shortly after beloved "Torchwood" character Ianto Jones was killed off the show.

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

Legends say that this small island was the final resting place of the Welsh saint of lovers.

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

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

Three bridges straddle a stream, one stacked upon the other.

A real-life Professor Snape once taught in this Welsh university building, which students of course nicknamed “Hogwarts.”

A 19th-century funicular railway shuttles visitors up this surprising sea cliff to one of the world's largest camera obscuras.

This sculpture used famed boxer Joe Louis as the inspiration behind its body.

Romania's triumphal arch looks out over Bucharest.

This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.

A fire once nearly devoured this gorgeous 14th-century Gothic cathedral.

This once-derelict building is now one of the most beautiful bookstores in the world.

Originally built for London’s cab drivers, this bright green hut now serves anyone a hot drink or meal.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

The cedar tree in Highgate Cemetery earned its title by accident.

Giant, friendly pelicans in Central London, the most unlikely of places.

Mary Kelly was last seen here before she was murdered by Jack the Ripper.

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