If you're a bit of a daredevil and would like to see Stockholm from another angle, then Takvandring, or rooftop hiking, could be just the thing! A qualified guide will take you scrambling over rooftops in the city center (fully harnessed with safety ropes, of course). You'll be so gobsmacked by the view you'll forget how high up you are!
Address: Stora Gråmunkegränd 14, Stockholm
Phone: 46 8 22 30 05