Behind its grey exterior is a hidden historical gem. Quality Hotel 33 is the Oslo hotel that has it all: convenience, facilities, food and a panoramic rooftop view of the city. Seeing the hotel from the outside might some guests think that it’s a drab place, but they couldn’t be anymore wrong. Enter Quality Hotel 33 and you are up for a surprise. Behind its original 60s-style structure lies fresh colours and art from different eras, if not to mention the top floor terrace.