Dating back to the 15th century and Pope Martin V Colonna (1417-1431), it was rebuilt in 1730 by architect Nicola Michetti. 

The present building fills the large block stretching from Piazza SS Apostoli to Via della Pilotta, which it bridges with four arches before continuing as far as the garden of the villa Colonna. 

The Galleria Colonna was founded in 1654 by Cardinal Girolamo I Colonna and exhibit wonderful paintings by Veronese, Palma the old, Tintoretto, Bronzino, Guercino, Salvator Rosa and others. From the Gallery you can see the beautiful private garden of the Palace, built on the ruins of the Temple of Serapis.