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

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

The medieval-looking hammer beam teak roof may be a Victorian vanity, but it's still absolutely magnificent.

The longest stone bridge in England has an impressive history that dates back over 700 years.

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

Charles Dickens described the concert room in this amazing Victorian hall as "the most perfect room in the world."

A 13th-century inn where the ill-fated King Charles I spent his last night of freedom.

Never actually a tree at all, this spot was the site of London's public hangings for nearly 600 years.

The oldest of the three remaining bridges in England with buildings on top of them.

This medieval manor house was equipped with secret compartments for hiding priests.

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

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

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

Hear the quietest sound from across the dome.

Eighty million natural history specimens call this gargantuan museum home.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

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

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

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

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

It houses the remains of a 17th-century version of the Titanic.

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.