UNESCO World Heritage Sites

• Valle dei Templi ( (1997) is one of the most outstanding examples of Greater Greece art and architecture, and is one of the main attractions of Sicily as well as a national monument of Italy. The site is located in Agrigento. 

  

• Villa Romana del Casale (1997) is a Roman villa built in the first quarter of the 4th century and located about 3 km (2 mi) outside the town of Piazza Armerina. It contains the richest, largest and most complex collection of Roman mosaics in the world  
• Aeolian Islands (2000) are a volcanic archipelago in the Tyrrhenian Sea, named after the demigod of the winds Aeolus. The Aeolian Islands are a popular tourist destination in the summer, and attract up to 200,000 visitors annually
• Late Baroque Towns of the Val di Noto(2002) "represent the culmination and final flowering of Baroque art in Europe".[121] It includes several towns: Caltagirone, Militello in Val di Catania, Catania, Modica, Noto, Palazzolo Acreide, Ragusa and Scicli.
• Necropolis of Pantalica(2005) is a large necropolis in Sicily with over 5,000 tombs dating from the 13th to the 7th centuries BC. Syracuse is notable for its rich Greek history, culture, amphitheatres and architecture. They are situated in south-eastern Sicily.
• Mount Etna (2013) is one of the most active volcanoes in the world and is in an almost constant state of activity and generated myths, legends and naturalistic observation from Greek, Celts and Roman classic and medieval times.
• Arab-Norman Palermo and the cathedral churches of Cefalù and Monreale; includes a series of nine civil and religious structures dating from the era of the Norman kingdom of Sicily (1130–1194)

Tentative Sites

• Taormina and Isola Bella;

  

• Motya and Libeo Island:  The Phoenician-Punic Civilisation in Italy;
• Scala dei Turchi;
• Strait of Messina. 

Archeological sites

Because many different cultures settled, dominated or invaded the island, Sicily has a huge variety of archeological sites. Also, some of the most notable and best preserved temples and other structures of the Greek world are located in Sicily. Here is a short list of the major archeological sites: 

• Sicels/Sicans/Elymians: Segesta, Eryx, Cava Ispica, Thapsos, Pantalica.
• Greeks: Syracuse, Agrigento, Selinunte, Gela, Kamarina, Himera, Megara Hyblaea, Naxos, Heraclea Minoa,
• Phoenicians: Motya, Soluntum, Marsala.
• Romans: Piazza Armerina, Centuripe, Taormina.
• Arabs: Palermo, Mazara del Vallo.

 Agrigento 

Valle dei Templi

The Valley includes remains of seven temples, all in Doric style. The ascription of the names, apart from that of the Olympeion, are a mere tradition established in Renaissance times.

The temples are :

• Temple of Concordia ( geo:37.28963,13.59202), whose name comes from a Latin inscription found nearby, and which was built in the 5th century BC. Turned into a church in the 6th century AD, it is now one of the best preserved in the Valley.
  
  
• Temple of Juno, (geo: 37.2886, 13.60013)  also built in the 5th century BC. It was burnt in 406 BC by the Carthaginians.
  
  
• Temple of Heracles, who was one of the most venerated deities in the ancient Akragas. It is the most ancient in the Valley: destroyed by an earthquake, it consists today of only eight columns.
  
  
• Temple of Olympian Zeus,(geo: 37.29082°N 13.58441°E) built in 480 BC to celebrate the city-state's victory over Carthage. It is characterized by the use of large scale atlases.
  
  
• Temple of Castor and Pollux.(37.29126,13.579053). Despite its remains including only four columns, it is now the symbol of modern Agrigento.
  
  
• Temple of Vulcan,(37.292933,13.5765741) also dating from the 5th century BC. It is thought to have been one of the most imposing constructions in the valley; it is now however one of the most eroded.
  
  
• Temple of Asclepius,(37.2825161,13.5873896) located far from the ancient town's walls; it was the goal of pilgrims seeking cures for illness.
  
  

Province of Palermo

• Temple of Victory (Himera) (37.9723567,13.8224409 )

Syracuse temples

• Temple of Apollo (Syracuse) (37.0638837,15.2908426 )

• Artemision of Syracuse (37.059906,15.2917132 )

• Temple of Athena (Syracuse) (37.05965, 15.29354 )

• Tempie di Zeus (Syracuse) (37.0600418,15.2743748 )
  
  

Temples in the province of Trapani 

Temples of Selinunte

• Temple C (Selinus)  (37.58316, 12.82528 )
  
  
• Temple E (Selinus)  (37.58662, 12.8348 )
  
  
• Temple F (Selinus)   (37.58727, 12.83492 )
  
  
• Tempio G di Selinunte  (37.58819, 12.83491 )

Segesta 

Temple of Segesta   (37.94147, 12.83239 )

Sources: wikipedia