The Main Square of Arequipa, also known as Plaza de Armas, is the heart of Arequipa, Peru. It's famous for its stunning colonial architecture, with the impressive Cathedral of Arequipa on one side. The square is surrounded by arches and features beautiful gardens and fountains. It is a popular spot for both locals and tourists. The nearby buildings are made from white volcanic stone, giving Arequipa its nickname "The White City."