Historic Centre of Graus Monument · Graus, La Ribagorza, Huesca Arcaded Renaissance ensemble of the Plaza Mayor of Graus, a town where King Ramiro I of Aragon died in 1063 during a failed siege, and where the Regenerationist thinker Joaquín Costa died in 1911, his funeral in Zaragoza drawing some forty thousand people. Photo: El Mono Español (CC BY-SA 4.0) What to see and do in Graus