Masjid Kampung Hulu Melaka City

The oldest functioning mosque in Malaysia was, surprisingly, commissioned by the Dutch in 1728. The mosque is made up of predominantly Javanese architecture with a multi-tiered roof in place of the standard dome (at the time of construction, domes and minarets had not yet come into fashion). It's not particularly well set up for visitors, but this Chinatown icon is worth admiring from outside.