Mentioned by Delve Into Europe
17 Beautiful Churches in London
"Westminster Abbey is often mistaken as one of the cathedrals of London. It’s an easy mistake to make, but it’s an Abbey which has served as the Coronation Church for Kings and Queens of England for almost a thousand years. Westminster Abbey is one of the big-ticket top three or four things to do in London, and it’s something we suggest you make time for, even if you only have a 1-day London itinerary."