I get this flip flop from my best friend K. She found him a year ago when she was in Greece. Thessaloniki is the second-largest city in Greece located in the north part of this country. On this flip flop we can admire the principal monument of this city. It's the White Tower which is a symbol of Greek sovereignty over Macedonia. It became a notorious prison and scene of mass executions during the period of Ottoman rule but nowadays is a place of the Byzantine Museum.