Old Sarum is an ancient hilltop site located near Salisbury in Wiltshire, England. It features the remains of a prehistoric settlement, a Roman fort, and a medieval castle. The site was once the location of a thriving community and served as an important military and administrative center. The most notable structure at Old Sarum is the cathedral, which was built in the 11th century but later abandoned in favor of a new cathedral in Salisbury. Today, Old Sarum is a popular historical site, attracting visitors who come to explore its rich history and enjoy panoramic views of the surrounding landscape.