See all of London's top sights with The Original Tour on one of their many open top double decker buses. You can get on the bus just 2minutes away from Holiday Inn London - Regent's Park and enjoy a full day of sightseeing with a hop-on hop-off ticket that also includes a return ferry trip to Greenwich. Take in the sights from London's best viewing point and see the London Eye, Tower Bridge and National Gallery just to name a few.