Poland- World Heritage Sites

Europe-Poland-Krakow  Showing the Square and the Historic centre of Krakow, which is a World Heritage Site. A great city to visit. This was my third visit to Poland, but in fact was my last,country to visit postcard wise in Europe. 

Visited a small post office here with very few stamps. 

Europe-Poland-Wieliczka  This is the famous Salt mine , not far from the city of Krakow. You literately go down a shaft mine and is pretty amazing. You can see the Chandlers in the bottom right of the postcard ,  down in the mine. Also a well deserved World Heritage Site. 

I have looked at this stamp many times and not sure what it is about. Think it might be a shell fish of some sort !