The roof is surmounted by a wooden octagonal cupola crowned with an onion dome. A lightning rod extends from the onion dome. The bell tower with an onion dome was completed in 1750. The northeasterly one is equipped with an onion dome. The onion dome was added in 1697. The entrance is through a central structure which has an onion dome and four minarets. It is five stories tall and crowned with a Baroque onion dome. Hubback and Bidwell effectively introduced into the Malaysian architectural vocabulary the onion dome. One such styling is the architects use of onion dome and pastel colors. The current church is Baroque with a characteristic onion dome on its belfry. By that time the onion dome design was also fully developed. The Russian onion dome was a later development. The kiosk is octagonal with an onion dome with round arches and deep eaves. All three towers are topped by a copper-clad onion dome. Its onion dome is highly unusual for Northern Germany.