Dioceltians Palace Split
built at the end of the 3rd century AD by the Roman Emperor Dioceltians, the palace is located on the Bay of Aspalathos. Toady the palace is the heart of Split's inner city and is one of the most significant historical buildings in the world because of its outstanding level of preservation and mix of various architectural styles. Splits inner city which is built around the palace has been declared a World Cultural Heritage Site by UNESCO, underlining its cultural importance. The palace's groundplan is an irregular rectangle with towers and combines the style of luxurious villa with that of a military camp. the emperors' apartement built on the southern side facig the sea is a luxurious structure with its own private sea gate entrance while the remaining sides are all fortified to protect against attack. The palace is built from high quality local white limestone from quarries on the island of Brac combined Tuffa from nearby riverbeds and Salonitan bricks. Inside the elaborate decorations were imported, such as Egyptian granite columns and fine marble sphinxes. Open daily 9am to 1pm except Thursdays 9am to 5pm and closed on Sunday.
The Bell Tower Split
built between the Cathedral of St Maria and the Peristyle in the later half of the 13th century and early 14th century. The Bell Tower in a Romanesque style with the top end built in a more Gothic Renaissance style. However in the 19th century the Bell Tower was radically reconstructed and many of the origional Romanesque sculptures were removed. Visitors can still view the two that remain, the two lions that gaurd the entrance to the cathedral from the Peristyle. These sculptures together with others at the Trogir Cathedral are some of the best preserved Romanesque sculptures on the Adriatic coast.
The Marjan Hill Split
located on the western side of the city of Split, Marjan hill was first known as Mons Serranda or Mons Kyrieleison in Medieval documents. The hill reaches a height of 178 meters and from the top th eviews of the city are spectacular. On the western slopes of the hill the church of St George built in 10th or 11th centuries has the Oceanographic institute built next to it.
On the top of the hill is the zoo and Natural History Museum. The first Belvedere which can be reached by stone steps from the Riva is located on the eastern slopes of Marjan. Carved into the cliffs on the southern slopes are caves where 15th century Renaissance Hermitages were situated and infront of the caves is a small church with an altar made by Andrija Alesi and the Relievo of St Jerome. The caves and church can be visited.
Mestrovic Gallery Split 
located at Ivan Mestrovic 46. The gallery is a Croatian landmark situated in a grand Neo Classical building that was built by and lied in by Croatias most famous 20th century sculpture, Ivan Mea. The fantastic collection of sculptures at the gallery is mainly made up of bodies boldly crafted and curled up in elegant poses.
About 300 meters up the road from the gallery is Mestrovia's old workshop which contains a chapel containing his most famous set piece wors, scenes from the stations of the cross, carved in wood. The entrance fee to the workshop is covered in the price for the ticket for the gallery. Open Tuesday to Saturday 10am to 6pm, Sunday 10am to 3pm.
Salona Solin
Salona was a stronghold and a harbour of the Illyrian Delmati which quite early came into the sphere of influence of the Greeks on the Adriatic. Julius Caesar, who was then the governor of Illyricum gave it the rank of a colony (Colonia Martia Julia Salona) - the center of the province of Illyricum and afterwards of the province of Dalmatia. It developed into a cosmopolitan centre of the Adriatic. The high point of its expansion was during the time of Diocletian when it received the honorary title Valeria, which as a family name belonged to the emperor himself. In the period between the IVth and Vlth centuries Salona became an important centre of Christianity. It fell before the onslaught of the Avars and Slavs around the year 641.