historical tower of 'ponts couvert' bridge 'petite france' quarter of strasbourg city

famous strasbourg river iii tower ponts couverts france bridge place sight architecture building city defence defensive work europe european historic historical landmark monument old petite quarter couvert protection ill stone tourism tourist town travel winter 39aph39ponts couvert39aph39 erected 13th century 39aph39petite france39aph39 reflection water palace tree estate vacation waterway castle park sea lake 'ponts couvert' 'petite france'