One wall in our world

I want to explain about this fantastic wall: The Nördlingen Wall. This wall is in a small village, in Germany. The wall was built in the Medieval Era, because in this time a meteorite fell here! And the people built the village and the wall around the crater. Every year the people celebrate a big party called "Party of the wall" (Stadtmauerfest), in honor at the wall.
I know this things and more about Nördlingen because I was been here! I went to this village with my friend Lydia last summer. These holidays were perfect! I remember Nördlingen and his wall, because it have a lot of magic.

The Nördlingen Wall from heaven

Me, in the middle of Nördlingen, looking to the wall in the large Tower.