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Old city wall within a modern city

Old city walls dating back to Roman's occupation are often found in European cities.  These walls are merged with ongoing developments.  Here are two examples:


[img]http://farm3.static.flickr.com/2277/2381467942_2183cc18d2.jpg[/img]

[img]http://farm3.static.flickr.com/2279/2380633235_382ec5b44d.jpg[/img]