Mount Menumbing (355 meters) a rather high hill in the neighborhood of Mentok (North West Banka) stands as a memorial to the history of the Indonesian nation. It was built in 1932 during the DUTCH occupation period by Bangka Tin Winning Bedrijf (BTW) as a V.I.P. Guest House on the top of Mount Menumbing, is about 500 M above sea level.
Our former President Soekarno and the Vice President Moh. Hatta stayed in the guesthouse during their exile in 1949. Foreign missions came there for negotiating with our former President; the plane from UNCI (United Nations Commission for Indonesia) flew back and forth from Jakarta to Bangka Island during that period. This place is also called as Wisma Ranggam. The room, which was used, by the late President as well as his car is still can be seen in the building. Many Indonesians still like to visit this place of pilgrimage and see the well-kept personal belongings of the two former leaders, which are still in the compound.