An onion dome is a dome, a bulbous structures which resembles an onion. Such domes are often larger in diameter than the tholobate upon which they sit, their height usually exceeding their width, the apex of which tapers smoothly to a point. It was used extensively in Mughal architecture, which later went on to influence Indo-Saracenic architecture. Outside India it is also used in Iran and other places in the Middle East and Central Asia. At the end of the C19, the Dutch built Baiturrahman Grand Mosque in Aceh, Indonesia, which incorporated onion shaped dome. The shape of the dome has been used in numerous mosques in Indonesia since then.