The world's longest continuously running show has played at this small West End theater since 1974.

At almost 1,000 years old, this is the oldest known door in all of Britain.

The "beautiful" equation predicting the movement of all electromagnetic particles is engraved in front of Newton's tomb.

This intricately carved and hilariously huge bed was such a famous symbol both Shakespeare and Byron used it in their writing.

The fences outside some of South London's estates are made from recycled World War II stretchers.

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

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

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

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

A six-ton wedding present for the King of the Scots.

This early version of the guillotine was used to execute the man responsible for its construction.

The most loyal of little dogs, or a Victorian era publicity stunt?

This small museum in a 17th-century building honors three iconic Scottish writers.

This otherwise ordinary close on the Royal Mile constituted the end of the world for Edinburgh’s poorest residents.

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

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

There are plenty of wonderful panoramic vistas in Edinburgh, but not many are hidden smack in the middle of the Old Town.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

The pockmarks across the building's facade are remnants of the Blitz.

This bewitching Babylonian goddess haunts a hallway of the British Museum.

The handiwork of a underdog clockmaker who solved an impossible problem for an Empire, and forever revolutionized seafaring.

The bridge is a secret gallery of discarded gum that has been transformed into miniature masterpieces.

These mysterious Viking chess pieces spent centuries hidden on a remote Scottish island.

One of the few remaining examples of 19th-century London’s attempt to clean up its reputation.