Tokyo Metropolitan Government Building Observation Decks are located in the Tokyo Metropolitan Government Building in the bustling district of Shinjuku. A major landmark, the building's twin towers each have an observation deck situated on the 45th floor. Access is free to the public and the observations decks offer a bird's eye view of downtown Tokyo. Prominent landmarks, including Tokyo Skytree, Tokyo Tower, Shinjuku Park Tower are all visible. With favorable weather conditions, it is possible to glimpse Mount Fuji. Taking a trip up to the towers is well worth it as they provide a great way to get a sense for Tokyo's impressive size and scale.