The Galleria Nazionale d'Arte Antica (GNAA), or National Gallery of Ancient Art, is the main national collection of older (broadly, pre-1800) paintings in Rome. It has two sites: the Palazzo Barberini and the Palazzo Corsini.
The Palazzo Barberini was designed for Pope Urban VIII, a member of the Barberini family, by 16th century Italian architect Carlo Maderno on the old location of Villa Sforza. Its central salon ceiling was decorated by Pietro da Cortona with the visual panegyric of the Allegory of Divine Providence and Barberini Power to glorify the papal Barberini family.
The Palazzo Corsini, formerly known as Palazzo Riario, is a 15th-century palace that was rebuilt in the 18th century by architect Ferdinando Fuga for Cardinal Neri Maria Corsini. For a partial list of artworks, see Palazzo Corsini entry.
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.