Spianada
Municipality of Central Corfu and Diapontia Islands, Greece
Spianada (pronounced [spi.aˈna.ða], "esplanade") is a large central square located in the city of Corfu, Greece. It is the largest square in Greece, the biggest in Europe and the 27th biggest in world by area and is situated directly in front of the Old Fortress.
Square data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).