Information about Piraeus
Piraeus is a Greek town of Attica located just over 10 km southwest of the center of Athens, with which it is united without solution continuity through a series of suburbs. Natural harbor with several inlets and secondary marinas, its importance in the economy of Attica and Greece can be traced back to ancient Greece. In particular from the fifth century BC, when it became the port of classical Athens, thus contributing to its economic and military growth.
It is the most populous municipality of Attica after Athens, with a population of 163,688 inhabitants on 10.9 km², while its prefecture has 466,065 inhabitants out of a total of 50 km². Together with Athens and the attic suburbs, it is part of the Athenian hinterland, which counts 4,013,368 inhabitants. It is the largest port in Greece and the largest in Europe by number of passengers, as well as the third largest in the world, with a traffic of over 20 million passengers a year. With a traffic of 1.4 million TEU it is also one of the largest ports of the eastern Mediterranean for container traffic.

Information about Sitia
Sitia is a town in Greece located in the island of Crete (peripheral unit of Lasithi) with 18,856 inhabitants according to the 2001 census data.
Following the administrative reform called the Callicrate program in force since January 2011 which abolished the prefectures and merged several municipalities, the area of the municipality is now 627 km² and the population has increased from 14.338 to 18.856 inhabitants.
The municipality is located in the eastern part of the island of Crete. The territory of the municipality is mostly mountainous and is bathed to the north by the Aegean Sea. Its coasts are rocky and jagged except for short stretches.