The Kawaiahao Church, which was constructed in the early piece of the nineteenth century, is one of Oahu's most history structures. It is recorded within the National Register of Historic Buildings. You can even go for a walk to the upper floor here, where you can feel a Hawaiian style. The building itself is built completely from coral squares, giving it a particularly Hawaiian look and feel. Because of the history behind it, it makes the visiting interesting, and is one of numerous memorable structure in Honolulu.