The town began as a castle town, and while the buildings have remained the same, the castle and the village chapel have fallen to ruin in the intervening centuries.

Carved from sandstone, the dungeon (foreground) beneath England's Nottingham Castle (top) -scanned in 3-d via lasers-is superimposed on an image of the aboveground buildings.

Castles consist of a group of fortified buildings with thick walls and towers... Today, monarchs still reside in some very popular ones, such as Windsor Castle.