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 Odeon of Herodes Atticus is a stone theatre structure located on the southwest slope of the Acropolis of Athens. It was built in 161 AD by the Athenian magnate Herodes Atticus in memory of his wife, Aspasia Annia Regilla. It was originally a steep-sloped theater with a three-story stone front wall and a wooden roof made of expensive cedar of Lebanon timber. It was used as a venue for music concerts with a capacity of 5,000. It lasted intact until it was destroyed and left in ruins by the Heruli in 267 AD.
The audience stands and the orchestra (stage) were restored using Pentelic marble in the 1950s. Since then it has been the main venue of the Athens Festival, which runs from May through October each year, featuring a variety of acclaimed Greek as well as International performances.