Osaka Prefectural Government Sakishima Building

The Osaka Prefectural Government Sakishima Building or Cosmo Tower is the third tallest building in Osaka and the sixth tallest building in Japan. Until 2023, it was known as Osaka World Trade Center Building or WTC Cosmo Tower. It is located in Nanko Cosmo Square, near the Osaka harbor, in Suminoe-ku.
The skyscraper rises, the same height as the Rinku Gate Tower Building in Izumisano. It contains three basement floors, a museum, restaurants, office space, a conference room, a skylobby and an observation deck, which is located in an inverted pyramid at the top of the structure. The building houses the working office for the governor of Osaka Prefecture.