Nottingham castle was built by the Normans in early century. It wasn't until after the Nottingham uprising in that a sheriff was placed there, since no one was the owner. Nottingham is famous for the Legend of Robin Hood.
Someone have aske how i made the floor - here you can see that is absolut simple. I have seen this floor some months ago in the net but doesnt know how he have made it. So i have tried some Versions and this is the reslult :-)