With a drink in hand (that'll be a free vodka cocktail if you get there before 10pm), Sintillate wants you to groove the night away at its legendary 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 music provided by Kenji on the sax and, as you enter the wee hours, DJ Rich Stone will keep the tempo up, the beats pumping, and your feet dancing. General admission. Over 18s only. Dress to impress.