You can see it better here
Sigismund's Column. Sigismund III Vasa (Zygmunt III Waza) was a king of Poland who moved the capital od the country from Kraków (Cracow) to Warsaw in 1596.
If you ever visit the Old Town of Warsaw, you must walk along of the city Walls ...
... and see the Barbicane.
I love walking through the Old Town of Warsaw. But this time, the purpose of the visit was special - I had loads of postcards to sigh and send. I invite you all to Postcrossing.com. It is a great way to visit the world without travelling. And a great place to make new friend as well :).