This must be what it's like to party in a war zone. It was the last night of business at the old Hidden Tree and the place was jam-packed. The crowds jostled and smoked, danced and drank. Outside fat snowflakes fell silently on the chunky concrete detritus of torn-down Sanlitun bars as explosions of Lantern Festival fireworks set off car alarms blocks away. Inside people partied like there was no tomorrow. Hidden Tree's pizza chefs didn't stop kneading dough and spreading cheese from the early evening until 100 pizzas later, when every last raw ingredient had been sold. With Piet from YPHH presiding, free beers flowed and the crowd lingered till past 1am, when the curtain closed on a Beijing institution. [text from That's Beijing]