Holy Door (Santiago de Compostela)
The Holy Door (Spanish: Puerta Santa, Galician: Porta Santa), also known as the Door of Forgiveness (Galician: Porta do Perdón), is located at the rear of the Santiago de Compostela Archcathedral Basilica, in Galicia, Spain, and is opened only during a Jacobean Holy Year. During the Holy Year it remains open so that pilgrims, and others, may enter from the Plaza de la Quintana into the apse of the cathedral.
Source: Wikipedia — Holy Door (Santiago de Compostela) (CC BY-SA 4.0)