What was the purpose of the two towers on top of the tower bridge of london?

The two towers on the Tower Bridge in London serve both structural and aesthetic purposes. Architecturally, they support the bridge's bascule mechanism, allowing the road to lift for passing ships. Additionally, the Gothic design of the towers enhances the bridge's visual appeal, making it an iconic symbol of London. They also house walkways and viewing galleries, allowing visitors to enjoy panoramic views of the city.