Wawel Royal Castle.
In the center of Krakow you will find a beautiful castle. During the 10th or 11th century the kings of Poland settled here and they started to create a palace castle.
During the Swedish invasions of 1655, the invaders plundered the castle. After the Austrian-Hungarian empire added this part of Poland to their empire, they destroyed a large part of this medieval castle.
Now it’s one of Poland’s jewels on display. You can also walk around it, put your hands on the walk of fame and behold the dragon’s fire.