Jaw-dropping. On ul. Olejarna stands a six-storey, re-enforced concrete cube built as an air-raid shelter, bunker and anti-aircraft battery by the Germans during WWII. The only building in the area to survive the war, for many years it stood empty, save being used as a climbing wall, until someone with a magnificent imagination and access to a colossal amount of money decided to turn it into a club. The results are as we say breathtaking. Get past the rather large, black-suited chaps on the door and you’ll be met with the original corridors flanked by 1.2 metre thick walls which lead into a labyrinth of bars, dancefloors, seating areas and some of the most fantastic toilets we’ve ever seen. Each level is different with our favourite being the caged seating featuring military bunks and for some reason an electric chair on level 3 or 4 (or 5 we can’t be sure in the light of day). The bars are well-stocked and manned by friendly staff; prices are surprisingly low and the mix of original features (lighting, exposed pipes) and artistic touches will have you reaching regularly for your camera phone. As a club the music’s a bit of a hotchpotch while the air-conditioning has a huge job on its hands particularly seeing as there's a smoking section upstairs in the cell block. The place is so huge that anything short of a few hundred people makes it look virtually empty but we’ve spent a few good nights in here and urge you to do the same.