What should we do tommorrow in london?

St Paul's Cathedral and a walk around Fleet Street. You don't have to be religious to fall in love with St Paul's, it's the most wonderful place. Climb the stairs to the top of the Dome and don't forget the Whispering Gallery! Nip into some of the little alleys off Fleet Street and feel yourself step back hundreds of years (unless you step on a McDonald's wrapper lol!)