Tsūtenkaku is a tower in Osaka, Japan. It is a well-known landmark and shows advertisements for Hitachi, Ltd. The tower is 103 meters tall. The main observation deck is 91 meters above the ground. The three characters in the name mean "Reaching Heaven Tower". It is in Shinsekai, part of Naniwa Ward. Tsūtenkaku Kanko Co., Ltd. owns the tower.