The stones of Jeju were protectors watching over the people. They were piled up high into fortresses, beacon sites, military sites, and even the Hwanhaejangseong Fortress to protect the island from military invasion. There are also towers that were piled up for people to offer their fervent hopes and prayers to. Would you like to try piling up a bangsatap (protective tower), which were built in villages all over Jeju in the hopes of keeping it safe?