The Monarch advertising sign (In Spanish: letrero publicitario de Monarch) is located in the roof of a building on the number 51 Rancagua Street, in the Santiago Metropolitan Region, in the city of Santiago, more specifically in Providencia commune, Chile. It was installed around 1954 and declared a National Monument from Chile, in the category of Historical Monument, through the Decree n.ยบ 219, of May 31 of 2010.