Plaza del Emperador Carlos V
Madrid, Spain
Plaza del Emperador Carlos V (Emperor Charles V square) is a square in the city of Madrid. It is named after Charles V, Holy Roman Emperor, who also reigned in Spain as Charles I. However, it is referred to as Plaza de Atocha, because it is where Madrid Atocha railway station is located.
Square data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).