There's an exclusive Beefeaters pub hidden in the Tower of London.

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

The broken skateboards that became a poignant memorial to a murdered skater.

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

A museum wholly devoted to juvenescence.

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

A community of artists and entrepreneurs seeks a simpler life on London's waterways.

Charles Babbage's proto-computer, painstakingly brought to life.

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

An small and easily overlooked archaeology museum chock full of Egyptian artifacts.

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

Eighty million natural history specimens call this gargantuan museum home.

Hear the quietest sound from across the dome.

Rebuilt remains of a temple to Roman god Mithras.

One part local history, 99 parts gruesome haunted house.

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.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the first ‘Harry Potter’ film.

This spectacular dome managed to survive after being bombed in World War II, in an event known as the "Miracle of Mosta."

The Jesus tree of Malta bears a striking resemblance to Christ on the cross.

The remains of a 1st-century aristocratic Roman town house featuring beautiful well-preserved mosaics.

This prison on the Maltese island of Gozo is almost 500 years old, and they have the graffiti to prove it.

This subterranean necropolis holds three floors of antler-dug grave caves.

The world's largest grapevine has produced a delicious harvest at Hampton Court Palace for almost 250 years.