Marco Polo enters a city: he sees someone in a square living a life or an instant that
could be his; he could now be in that man's place, if he had stopped in time, long ago;
or if, long ago, at a crossroads, instead of taking one road he had taken the opposite
one, and after long wandering he had come to be in the place of that man in the square.

Traveling, you realize that differences are lost: each city takes to resembling all cities...
   

                     
The City of Fog                   The City of Light                   The City of Water                   The City of the Moon and Star

Top: Canaletto's Campo di Rialto in Venice
Quotations: Italo Calvino's Invisible Cities
Bottom, from left: Monet, Pissarro, Jankowsky, Aivazovsky