Zaragoza is a city and a municipality in Spain, capital of the province of the same name and of the autonomous community of Aragon. Belonging to the Central Region, it has a special legal regime as the capital of Aragon. With a population of 681,877 inhabitants (INE 2020), it is the fifth most populous city in the country, after Madrid, Barcelona, ​​Valencia and Seville.

It is located on the banks of the Ebro, Huerva and Gállego rivers and the Imperial Canal of Aragón, in the center of a wide valley. Its privileged geographical location makes it an important logistics and communications hub; It is located about 300 km from Madrid, Barcelona, ​​Valencia, Bilbao and Toulouse. Part of its municipal area is occupied by the managed natural reserve of Sotos and Galachos del Ebro.

The city holds the titles of Very Noble, Very Loyal, Very Heroic, Very Charitable, Always Heroic and Immortal, granted mostly after its resistance against the Napoleonic army in the Siege of Zaragoza during the War of Independence. All these titles are reflected in their shield, through the initials of each of them. It celebrates its main festival in honor of the Virgen del Pilar on October 12. The patron saint of the city is San Valero (January 29). Between June 14 and September 14, 2008, year of the bicentennial of the Sites of Zaragoza and centenary of the SpanishFrench Exposition of 1908, Zaragoza hosted the international exhibition Expo Zaragoza 2008 dedicated to water and sustainable development. In addition, the city of Zaragoza was the headquarters of the United Nations Secretariat for the Water Decade 20052015.