Oasis 21 is a complex in Sakae, Nagoya, with a shopping mall and bus terminal beneath a spacecraft-shaped roof. From the observation deck, where shallow water covers the glass roof, visitors look out at Mirai Tower and the Sakae night view. The basement holds a restaurant area and accessory shops, and the bus terminal serves buses to the suburbs and Chubu Airport. The shopping mall itself does not have much to see.