Oslo's landmark and Norway's largest hotel with 37 floors and 673 spacious rooms -Next to Oslo Spektrum multi event Hall -Breathtaking views from our luxurious Panora Convention Center on the 33rd floor. Norway s largest banquet & convention facility with the Sonja Henie Ballroom being perfect for any event up to 1000 guests. Close to all public transportation. Rates are based on double occupancy. Charges for extra adults may apply and will be due directly to the hotel.