These are the city walls in Athens and Istanbul. I wonder which of the cities I visit over the next three weeks will be walled cities?
I'm traveling again for three weeks from this evening - Madrid, Portugal, three cities in Morocco, back to Madrid, then Valencia and Barcelona. I'll look out for the walls and when I get back I'll take some photos of Valletta and Grand Harbour bastions. The concept of the walled city is no longer useful yet the fascination remains.