Salamanca recreates the passion and death of Jesus Christ during Easter Week with the passage of processions (solemn corteges accompanying the religious images) through the streets of its old quarter which has been declared a World Heritage site by the UNESCO. Some of the scenarios include the Plaza de la Universidad square, Casa de las Conchas house, the cathedrals and the Clerecía building. Around 50 floats take to the streets (the structures built to carry the religious statues) and many of the figures date from the 15th century. There are two key moments: the Descent of Christ (on the morning of Good Friday) and the religious services at the University on Easter Thursday. This is a combination of a liturgical and academic act that takes place in the chapel of the old University and is attended by all the faculty. At the end, those in attendance receive the traditional chocolate and sweets.