The Yayasan Sabah Tower (officially known as Menara Tun Mustapha) was built in 1977, is the second tallest building in Borneo after The Ministry of Financial Building in Bandar Seri Begawan,Brunei Darussalam.
This 30-storey circular glass sculpture that reaches 122 meters high is located in Kota Kinabalu, Sabah. It is named after Tun Datu Mustapha, a former Chief Minister of Sabah. The building used to be known as Sabah Foundation Building (Bangunan Yayasan Sabah). It is home to the '@mosphere' restaurant at the 18 floor, which slowly spins to provide a complete view of Likas Harbour. It makes one rotation per hour.