 The massive structure at one time housed over 5000 persons, men and women, in separate wings  The building was originally designed with five courtyards and a church in the centre, entered through the central arch, but only the three innermost courtyards were built, and plans to complete the building according to the original design were finally abandoned in 1819.The building is the centre of Naples, which is included in UNESCO World Heritage List.It is no longer a hospital, and despite the impressive facade, it has suffered much from neglect and earthquakes.