What's hiding in this tower in London? This is the Victoria Tower. It's part of the Houses of Parliament and everyone knows what's in this tower [Big Ben]. It's named Big Ben because of the bell inside it. But what about this tower [Victoria Tower]? Arguably, it's far more interesting. It houses the parliamentary archives and the best bet is the Act Room. This has 64,000 Acts of Parliament dating back to 1497. Each of these is a handwritten vellum scroll, which either creates a new law or amends an existing one. Still today, each act receives Royal Assent, the monarch signing off on the law. So going back to our history, you can find signatures of old kings and queens, like this one from Elizabeth I. Today modern Acts of Parliament look like this, printed on more animal-friendly paper.