Troms? bibliotek og byarkiv: the public library in Gr?nnegata. The building is constructed under the original roof of the old Fokus Cinema, which was designed by the architect Gunnar B?geberg Haugen and rised in 1969. The extraordinary roofˇs structure is based on the mexican architect Candelaˇs structures, usually named as Candela shell. Formed as four bowed arches it makes an hyperbolic paraboloid form, Tromso, Norway, Scandinavia, Europe