the onion dome is not only found in russian architecture: it was also used extensively in mughal architecture, which later went on to influence indo-gothic architecture. outside india, it is also used in iran and other places in the middle east and central asia. at the end of the 19th century, 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.