The Free Church of Tonga (also called the Centennial Church) is not just a local house of worship; it’s also the name of a religious denomination. The religion was established in 1885 by King George Tupou I and the missionary Reverend Shirley Waldemar Baker to break from Australia’s Methodist church. The structure has an eye-catching exterior and a modest but peaceful interior. Services are still held regularly, so you may get to hear the beautiful choir.