The ancient theater of Delphi was built above the Temple of Apollo, and it offers spectators a view of the entire sanctuary and the valley below. The Archaeological Site of Delphi is a UNESCO World Heritage Site.

The Avenue of the Knights in the old town of Rhodes.

Image: Self

Greece is home to 18 UNESCO World Heritage Sites, 16 cultural and two mixed. (see UNESCO's list for Greece)The Acropolis of Athens and its monuments are considered the universal symbols of the classical spirit and classical civilization. The temple complex on a hill in the middle of Athens is the largest architectural and artistic group of monuments that Greek antiquity has left to the world. In ancient times, strong fortification walls have surrounded the summit of the Acropolis hill.In 1977, the burial sites of several kings of Greek Macedon were found in the town of Aigai (Vergina), which was the ancient capital of the Kingdom of Macedonia. It was the site where Philip II of Macedon was king. From here, he restored peace within the kingdom, and by 339 BC, he had gained domination over all of Greece by military and diplomatic means. He was the father of Alexander the Great, his successor.The sanctuary of Delphi, with its main monument, the Temple of Apollo, is located on the slopes of Mount Parnassus, about seven kilometers from the coast of the Corinthian Gulf. In ancient Greece, Delphi was the "center of the world," the hub of the universe, literally. It was the site where Pythia, the high priestess of Apollo at Delphi, went into a trance to forecast the outcome of future wars or political strategies. The sanctuary itself was at the center of several "Sacred Wars" over the control of Delphi.For more than 200 years, Rhodes, an island off the Turkish mainland in the eastern Mediterranean, was ruled by the Knights of St John of Jerusalem, a military order who had lost their last stronghold in the Holy Land. The history of Rhodes under the reign of the Knights Hospitaller lasted from 1310 until 1522. They transformed the island capital into a fortified city that could withstand sieges by Egyptian (Mamluk) and Ottoman forces. The city of Rhodes is one of the best-preserved and most extensive medieval towns in Europe.