THESSALONIKI
The city was founded around 315 BC by the King Cassander of Macedon. He named it after his wife Thessalonike, a half-sister of Alexander the Great. Since 1912, Thessaloniki is Greece's second major economic, industrial, commercial and political centre, and a major transportation hub for the rest of southeastern Europe.
Thessaloniki retains several roman, early-christian and byzantine monuments.
White Tower has been adopted as the symbol of the city. It houses a Byzantine museum and is one of the city's leading tourist attractions. It is not known when the tower was constructed, but it was probably around 1430.
You can find more information about Thessaloniki at:
http://en.wikipedia.org/wiki/Thessaloniki
http://en.wikipedia.org/wiki/White_Tower_of_Thessaloniki