The new Routemaster buses are fine, but the old heritage Route 15 still runs vintage double-deckers from Tower Hill to Trafalgar Square. Hop on, ride the top deck, and pretend you’re in a 1950s movie. The rattling, the leather seats, the view—it’s pure joy, and it costs the same as a normal bus ticket.
Underrated london attractions - Touristvisitorguides.com