Sunshine 60 is a skyscraper in Ikebukuro with, you guessed it, sixty stories stretching 240 meters high. For a short while it was the tallest building in Japan until the Tokyo Metropolitan Government Building surpassed it in 1991.
The observatory sits on the sixtieth floor. Getting up there is half the fun- the elevators in Sunshine 60 are some of the fastest in the world, whipping passengers from the lobby to the top floor at 600 meter per minute. Once you reach the top there are both indoor and outdoor observation decks. On a clear day you can see up to 100 kilometers. The view is particularly stunning at night. Be careful though- the open air deck can be quite windy!