Santillana del Mar Collegiate Church has its origins in a monastery dating from 870. Tradition has it that it was home to the relics of Santa Juliana.
Over the course of the 11th century it was transformed into a collegiate church, although the building visible today dates from the 12th century. It has three naves, with dome, transept, three semi-circular apses and a tower. The transept and apses conserve their original barrel-vaulted ceilings. Special mention should be made of the sculptural decoration of the doorway, the capitals and the cloister. Inside you can see medieval tombs and Romanesque reliefs from the 11th and 12th centuries. The main altar has an embossed silver front dating from the 17th century. Beneath this is another, in Romanesque style. The altarpiece is the work of a master artist from Burgos, dating from the beginning of the 16th century. A late-Gothic predelle was subsequently added, along with the Baroque statue of Santa Juliana between two Solomonic columns. On the main doorway there is a Byzantine pantocrator and an atrium flanked by two lions.
References:The Walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople (today Istanbul) since its founding as the new capital of the Roman Empire by Constantine the Great. With numerous additions and modifications during their history, they were the last great fortification system of antiquity, and one of the most complex and elaborate systems ever built. They were also the largest and strongest fortification in both the ancient and medieval world.
Initially built by Constantine the Great, the walls surrounded the new city on all sides, protecting it against attack from both sea and land. As the city grew, the famous double line of the Theodosian Walls was built in the 5th century. Although the other sections of the walls were less elaborate, they were, when well-manned, almost impregnable for any medieval besieger.