Royal Crescent is a crescent-shaped terrace of houses has been placed on what?
Royal Crescent, Brighton: Royal Crescent is a crescent-shaped terrace of houses on the seafront in Brighton, part of the English city of Brighton and Hove. Royal Crescent, Brighton:  English Heritage has listed the crescent at Grade II* for its architectural and historical importance. Listed building: A listed building or listed structure, in the United Kingdom, is one that has been placed on the Statutory List of Buildings of Special Architectural or Historic Interest.
Statutory List of Buildings of Special Architectural or Historic Interest