Plasencia Cathedral consists of two buildings: the old (Catedral Vieja), dedicated to Saint Paul, and the new (Catedral Nueva). Construction began in the 13th-century in a mostly Romanesque style. The 15th-century new church was built in Gothic architectural style with high ceilings. The main retablo was built in the 17th-century, carved by Gregorio Fernández and painted by Francisco Ricci. The choirs are delicately carved. The old church now houses the Cathedral museum.
The Old Cathedral is an example of a transitional building from Romanesque to Gothic architectural styles. To the Romanesque style belong the fustis and capitals of its columns, while to the Gothic style belong its arches and windows, discovered in one of the most recent restorations. Its three naves were covered from the 18th century by a thick mantle of lime, which only after decaying has allowed observers to admire the slenderness of a solemn cathedral.
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.