That's no cowbell.
It's Big Ben, the famous bell that gongs out the hours for the London clock tower also known as Big Ben. * For clarity, I'm talking about the bell
Unlike the the other bells, Big Ben is in a cage. I wonder why?
Protection? Anything that's been getting slammed with a mallet the size of a stove for the last 150 years has to be sturdy.
Does it have a history of running away? Getting drunk and ringing off key? Sneaking up on unsuspecting people and going "BONG!" I hear it cracked some years back. Some blame metal fatigue. I say it was in a bar fight.
*Technically the clock tower has another name