If you want wow factor then look no further, the Blow Up Hall is the most exciting hotel development Poznan, nay Poland, has ever seen. Attached to the Stary Browar building this is little less than a work of art. Based on a project by Rafael Lozano-Hemmer, the aim of this hotel is to allow guests to ‘experience and participate in the creation of art’. Pretentious? You bet. But who cares, if there’s one place you should scrimp and save to stay in, it’s this one. Perks include in house spa, butler service, Bang & Olufsen equipment and iphones for guests. There’s little point in describing the individually designed rooms, suffice to say they make use of the latest fads, trends and techno gimmickery; you really have to see it to believe it.