This is built by the Portuguese in the 16th century, part of the Unesco World Heritage site. It is a former Portuguese military fortification in Manama, Bahrain. It is believed that it was once the capital of the ancient Dilmun Empire. The excavations revealed streets, residential structures and monuments from 2300 BC surrounded by a protective wall. Humans have continuously inhabited this site since 2300 BC to 18th century. The site was only rediscovered in 1954. Restoration began in 1987 (Source: lonelyplanet, n.d., Bate, 2021).