As long as you keep drinking, Niebo will stay open, and this has become an after-hours cult classic packed with students obliterating scholarships well after dawn; when one drops off there's three more to replace them. A long, dog-eared, scarlet and blue bar full of random art photos and oddities, Niebo is the start and finish point for many Ruska pub crawls, so you'll have to step over a few casualties on your way to the dancefloor, pumping your fist to the classic rock and 90s anthems. With Murphy's on tap for 12zł, you don't really need to do much better than this.