strange that ppl always visit places outside of london but they never visit places outside of Paris!
More places for London -> Natural History Museum, National Gallery, Greenwich, Hyde Park, the Parliament, Westminster Abbey, Buckingham Palace
Paris -> lots of museums worth going if u r into art -> Louvre, Musee d'Orsay, Pompidou
Notre Dame, Montmatre, Sainte Chapelle, Champs Elysee & Arc de Triompe, Tour d'Eiffel, Opera, Chateau de Versailles etc... Paris got a lot more to see than London