With a drink in hand (that’ll be your free Valentine’s cocktail), Sintillate wants you to groove the night away at its rooftop party. There’s a glass elevator to whizz you to the top of the Madison, which has great views of St Paul's, especially from Europe's largest open-air roof terrace. You don’t have to just sit pretty though; there’s the silky jazz sounds provided by "The Saxman", Ben Barnett, and, as you enter the wee hours, DJ Scott Larok will keep the tempo up, the beats pumping, and your feet dancing. General admission. Over 18s only. Ends 2am.