Look closely at this photo taken in 1813! In this photo we can see flooded city of Kraków, a southern Poland city near the border of the Czech Republic, but this flood is not an ordinary flood which can happen after a hurricane or a cyclone, but the flood shown in this photo is much, much bigger than that. Look at how the Main Square building encircled is sunken halfway in the water! The Dome in the middle is almost covered with water!