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

In 2013, historians discovered a hidden room devoted to the art of making royals' hot chocolate.

Carved initials which are nearly 500 years old preserve the deposed Queen's presence at Hampton Court Palace.

A makeshift shrine to the late rock star is still kept up on the nondescript façade outside 1 Logan Place.

Hidden in the courtyard of the Victoria and Albert Museum is a little-known tribute to two celebrity pooches.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

The commemorative stone column conceals a secret laboratory.

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

The barrel-made lookout from Shackleton's final ship is tucked away in the crypt of one of London's oldest churches.

A Roman spa buried deep beneath the City of London.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

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

These Victorian era devil sculptures were designed to spite a local vicar.

This legendary stone is of unknown origin, and throughout history has been a literal touchstone for British leaders.

The ruins of a church destroyed by both the Great Fire of London and the Blitz, now turned into a peaceful garden.

It is still illegal to "quarrel" at this unlikely urban oasis built on top of an electrical substation.

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

This pub was 238 years old when it decided to revamp its image: It started serving Thai food.

The bronze uniforms commemorate the vital role of women during World War II.

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

This long-hidden space above Westminster Abbey now displays the battle gear of the legendary King Henry V.

It holds a fabulously designed tribute to astronomer Edmond Halley.

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

The niches over the western entrance of Westminster Abbey honor individuals from the 20th century who gave their lives for their Christian beliefs.