
A man visits Siguenza city, Spain, on May 19, 2021. Siguenza is a municipality in the province of Guadalajara, Castilla-La Mancha, Spain. Most villages in Siguenza have only a few dozen people, making it one of the regions with the lowest population density in Spain.(Photo:Xinhua)

Photo taken on May 18, 2021 shows a view of Siguenza city, Spain. Siguenza is a municipality in the province of Guadalajara, Castilla-La Mancha, Spain. Most villages in Siguenza have only a few dozen people, making it one of the regions with the lowest population density in Spain.(Photo:Xinhua)

People visit a village in Siguenza city, Spain, on May 19, 2021. Siguenza is a municipality in the province of Guadalajara, Castilla-La Mancha, Spain. Most villages in Siguenza have only a few dozen people, making it one of the regions with the lowest population density in Spain.(Photo:Xinhua)

Photo taken on May 18, 2021 shows a view of Siguenza city, Spain. Siguenza is a municipality in the province of Guadalajara, Castilla-La Mancha, Spain. Most villages in Siguenza have only a few dozen people, making it one of the regions with the lowest population density in Spain.(Photo:Xinhua)

Photo taken on May 19, 2021 shows a view of Siguenza city, Spain. Siguenza is a municipality in the province of Guadalajara, Castilla-La Mancha, Spain. Most villages in Siguenza have only a few dozen people, making it one of the regions with the lowest population density in Spain.(Photo:Xinhua)