The Fort of Our Lady of the Conception, also known as the Portuguese Castle is mainly in the peripheral areas of the Persian Gulf, Qeshm Port, Kong, Oman, Ra’s al-Khaimah, in Qeshm, Hormoz Island and other places. The Portuguese Castle, is a red stone fortress on Hormuz Island, Iran. It is one of the last surviving monuments of Portuguese colonial rule in the Persian Gulf. The castle was originally cut off from the rest of the island by a moat, traces of which still remain. Although most of the roof caved in long ago, much of the lower part of the very substantial outer walls is intact, with the remains lying on different levels of the site.