1.To keep out invaders

2.mostly in europe

3.Too big too cold and expensive

4.Kithens had huge cooking ovens sometimes they were long way away from the dining room so it would get cold. kithens contained a sculley where dishes were washed.

5.The wars stopped so they didn'thave to worry about enemies and castles became beautiful homes for many kings.

6.The castle wall offered the most pretition because it is a stone wall