Visit westminster abbey and get a front row view of the changing of the guard on this 25 hour london walking tour with a knowledgeable guide get fast track admission to westminster abbey see college garden thought to be the oldest garden in england and spot the graves of dickens tennyson and other revered writers then experience firsthand the pomp and pageantry of the changing of the guard as you watch the household cavalry perform by the horse guards parade or the queens foot guards m