In the year 295 AD, the Roman emperor Diocletian began the construction of the palace where he wanted to spend his old age. The whole structure was constructed as a combination of luxury villa and a Roman military fort (castrum). The southern section of the palace served as the Imperial quarters, while in the northern part the imperial guard and servants were located with all the facilities needed to sustain such a large number of people. On the central square of Peristil there was an entrance to the Imperial mausoleum, Imperial quarters and Jupiter's temple, the shrine of the principal Roman deity. Today Diocletian's palace presents an important cultural and historical monument; due to its historical and cultural significance it was included in the UNESCO World Heritage list