We just learned about the Leeds Castle.
Another famous castle is the Cité de Carcassonne, built around 300 AD in Carcassonne, Aude, France.
This castle is actually a fortress with a wall that goes around a whole city.
The wall is almost two miles long, and there are 52 towers going around it, with a moat and a drawbridge at the gate.
The first parts of the wall and castle were built around 300 AD, and more walls and towers were built up through the years.
(from: wikipedia - carcassonne)
Kid Facts - Blast from the past: Alberta