One of the most stunning examples of early 20th century architecture in Qatar happens to be right in the center of the city. Al Koot Fort (also known as Doha Fort) was built in 1927 and first used primarily as a police station to protect the nearby Souq Waqif. It was also used as a jail, the square-shaped white fort has towers – three circular and one rectangular – crowned with traditional Qatari-style battlements at each corner. Visiting times: The fort is not open to visitors.