In the third century the Emperor Diocletian built on the coast of the great fortress area of more than 4500 square meters. Here the Emperor spent his last years of life. 300 years later, behind the high walls looking for protection from the attacks of the Avars and Slavs residents Salons (the former name of the city of Split).

Most of the Palace eventually collapsed, remained the main entrance, the Golden gate, St. Martin's Church, Bronze and Iron gate and Peristyle (colonnade that surrounded the Palace). When Diocletian in the Peristyle were organized various festivals and solemn ceremony, and now during festivals there are theatrical performances.

In the cellars of the Sea gate, you can see the arches and walls of stone blocks, and brown bricks, supported on square columns. These premises are now used by local sellers of Souvenirs.

In the North-Eastern part of Diocletian's Palace is the Palace of Papalia, built in the mid fifteenth century by Juraj Dalmatinac. It Papalii known humanists of his time, first to collect local antiquities. Thus arose the City Museum with fascinating exhibits.