See the best that englands capital has to offer on a full day city tour of london explore st pauls cathedral with a guide then make a photo stop at westminster abbey watch the must see changing of the guard ceremony outside buckingham palace and have some free time for lunch around the unesco listed tower of london finish up with asightseeing cruise down the river thames if you want to see even more upgrade to one of two activities an afternoon tea ona boat on the thames or a london