The iconic city in the mountains has a historic past, as many of the ancient buildings have been well preserved for generations. The city was founded by Jews, who fled from the Spanish during the late 15th century. While there are many theories as to why the buildings in the city are blue, some say it was ancient tradition, that had passed on till today. Others argue, that the blue paint is to keep mosquitoes away. Nevertheless, the vibrant blue paint covers almost every building in the city. In 1920, the city startad accepting foreigners to visit.