Menara Kayangan, which means 'Tower of Heaven', is a watchtower and observatory platform located on the slopes of Mount Silam at Lahad Datu in Sabah, Malaysia. Perched at 620 meters high on the mountain, this 8-storey deck provides a grand view of Darvey Bay at sea and Lahad Datu on the plains. Surrounding the tower is Sapagaya Forest Reserve, an ultramafic rainforest with lowland and montane regions.
The region hosts an incredible variety of wildlife and plant species - many endemic to Borneo including a small ruby crab confined to Mount Silam. The entrance can be reached along the Lahad Datu-Tawau highway, about 12km south of town opposite the junction to Danum Valley.