You have arrived at Grand Casemates Square. Encircling Gibraltar’s largest and busiest plaza are plenty of bars, restaurants and cafes tucked within historic buildings and bursting out into outdoor seating. The arches behind you are part of the Grand Casemates, a military barracks completed by the British in 1817. This has been the city’s epicenter since the 14th century. Now you are part of it. If you want to sound like a local, then call this haven for socializing, nightlife and people watching the Casemates.