The sumptuous ceiling was one of the last things Charles I saw before his execution.

You'd never know the houses at 23-24 Leinster Gardens were fakes—until you see the train tracks on the other side.

The ritual has been performed uninterrupted for nearly 700 years.

William Blake claimed to have painted this gothic masterpiece after encountering this nightmarish being in a vision.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

A museum wholly devoted to juvenescence.

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

Tombstones and enigmatic inscriptions hide within a vault beneath a popular London arts venue.

The first geometric self-supporting spiral stairs in Britain are a truly beautiful sight.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

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

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

This artist's home turned gallery/museum preserves the creator's love of "Eastern" influences.

The fierce beast perches atop a pedestal marking where the historic City of London gates once stood.

Revel in the Victorian splendor of the world's oldest eating establishment inside a museum.

The pioneer of psychoanalysis spent the final year of his life here, still seeing patients on that famous couch.

A hidden treasure in London with a rich medieval history, and the resting place of many luminaries.

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

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

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

London's old-school healing garden.

A Victorian natural history and ethnographic museum with wonderful turn-of-the-century, science-book-esque evolution displays.

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