Elaine, You have ONE night in London. Don't waste it on that Keys drivel. It is a total waste of time. Our group all agreed we lost precious London time. People go because it is free. You will blow a good portion of an evening for nothing. It is like standing around Disney World to watch them lock the gates at closing. Go see a good play in Covent Garden, take a Thames cruise, walk around Harrods, ride a double decker bus, hire a cabby to give you a nice city tour, take a nice walking tour, ride the London Eye, walk around Westminster at night, catch a late museum. Anything but that.