Kamehameha the Great constructed this massive war temple on the Kohala Coast of the Big Island in 1791 after a prophet told him he would unite all the Hawaiian Islands if he built a heiau for his war god Kukailimoku — and within twelve years he had done exactly that. The three-tiered stone platform, 224 feet long and 100 feet wide, remains one of the largest and best-preserved heiau in Hawaii and a sacred site for Native Hawaiian practitioners today.