Tsūtenkaku (通天閣, lit. "Tower Reaching Heaven"), owned by Tsūtenkaku Kanko Co., Ltd. (通天閣観光株式会社, Tsūtenkaku Kankō Kabushiki-gaisha), is a tower and well-known landmark of Osaka, Japan and advertises Hitachi. It is located in the Shinsekai district of Naniwa-ku, Osaka. Its total height is 103 m; the main observation deck is at a height of 91 m.