Original cabaret handbills, posters, and feline artwork are a purrfect highlight of the Museum of Montmartre.

Formerly known as Saville Theatre, this mid-20th-century entertainment hub includes an ornate frieze.

At the top of the hour, figures of the London department store's two co-founders emerge and bow to each other.

Semaphore saints, a golden dragon's head, and a stone carved with religious warnings all call this cathedral home.

Be on the lookout for the symbolic insect all over the city.

This extinct volcano rises above Edinburgh and is special for its panoramic views over the city.

These barriers stand as stark reminders of Northern Ireland's troubled past.

This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

This network of narrow, medieval passages has the most delightful name.

Its collection includes a broad array of social, geographic, graphic design, and political history.

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

This short bridge is the only thing connecting a tiny Irish island to the mainland.

Follow the original medieval paths that wind through this intriguing section of the city.

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

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

Artists and musicians now rule over this former rail station.

Scattered throughout London are ancient remnants of the city's former bounding wall.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

Hear the quietest sound from across the dome.

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

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

Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

A stunning Victorian abbey and walled garden on a lakefront.

One of Ireland's most infamous prisons for rebels including men, women and children.