The medieval city of Avila in Spain.

Ávila is a small city in the autonomous region of Castile and León and the highest city in Spain. The ancient city wall is the symbol of the city, and the cathedral in the city is the oldest Gothic church in Spain. At the same time, there are a large number of Renaissance and Gothic churches, monasteries, etc. The Alcazar Castle, built in the 15th century, is also a highlight of the city. The city still retains its Christian cultural color, and a large number of historical sites are scattered around places such as Saint Teresa de Jesús and Saint Juan de la Cruz. At the same time, Ávila (population 50,000) is also a World Cultural Heritage City recognized by UNESCO.