The worst flood disaster in Welsh history might have been a lot worse if it had not happened on movie night.

Britain's only artificial surfing lake is nestled in the beautiful mountains of Wales.

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

An overlooked marble is the only surviving in-place 18th century example of the measurement that changed how we define distance.

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

This bookstore serves recipes from the cookbooks on sale.

A relic from one of London's worst 19th-century slums.

This pub was 238 years old when it decided to revamp its image: It started serving Thai food.

On October 17, 1814, a 15-ft. wave of beer ran rampant through the streets of London.

This magnificently macabre shield shows the power of chivalrous love in medieval times.

A naturally mummified 2,000-year-old man.

The Art Deco artwork depicts gilded carriers of deadly illnesses.

A measuring mishap led to these artificial stone ladies losing their stomachs.

The library houses an incredible collection of some of the world's most impressive books and manuscripts.

An unassuming London park is actually a pilgrimage site for modern clowns.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

A labyrinth hides in plain sight at each of the city's 270 Tube stations.

A famous burial ground with a history both grim and literary.

London's amazing modernist public square that never was.

The last four extravagant street signs of London's historic banking street.

A mysterious pair of mice eating a piece of cheese is London's smallest public sculpture.

The Great Fire of London and the regulation of one-way streets both started in this alley.

The commemorative stone column conceals a secret laboratory.