Apart from this domestic rural architecture, there is evidence that more classical type buildings may have been built on the island. A nearby example of similar classical Hindu-Buddhist Malay architecture is Candi Muara Takus in the Riau province of Sumatra. Like the Singapore example, it also featured the use of sandstone as well as terraces. Stone foundations on Fort Canning Hill were discovered by the British soon after they arrived. Although they have since been destroyed and removed, the officials who discovered them speculated they were part of Hindu or Buddhist temples and/or a royal palace. The superstructure of these buildings would have been timber (as suggested by holes found in the foundations). However, these had long since disappeared by the time the foundations were discovered in 1819. Apart from some archaeological fragments, like jewellery, porcelain, coins and an inscribed stone, there few material artefacts from the pre-colonial period, and no buildings or even ruins remaining today.