Trogir is situated in the middle of Dalmatia, on the Adriatic coast.

In the past, the town was one of the cultural centers of Dalmatia.
The old town core has been formed between the 13th and 15th century inside defense walls that were restored by Venice in the 15th century.
They also added two forts that are still preserved: Castle Kamerlengo and the Tower of Saint Marc.
Castle Kamerlengo is situated in the south-west side of the island. Its present shape is in the exact state as it was in the 15th century.
South of the castle is the tower of Saint Marc also from the 15th century, and between the tower and the castle there is a gloriet from the time of the French occupation.
The eastern part of the town has developed around the main square with the cathedral. The western part named Pasika, was built later in the century.