Long gone, it would seem, are the days when you'd just throw some chairs in a basement, some beer in a fridge and call it a club. Base continues Kraków's current cash-on-the-cuff club trend by pimping a spectacular 400 square metres of cellar space into another posh pleasure den, this one directly across from the ancient attic where Copernicus about-faced the field of astronomy almost 500 years ago. Full of fluctuating colours, padded bricks and reflective floors, Base features four distinctive bars in four aesthetic styles, two air-conditioned dancefloors where DJs slice and splice the latest sounds, and the obligatory VIP section occupying the ground floor. Enormous and ambitious, whether Kraków's nightlife has found a new axis around which to orbit remains to be seen, but Base makes a compelling case in Copernicus' shadow.