We just learned about the castle Cité de Carcassonne.
Another famous castle is Edinburgh Castle, built around 1100 AD in Scotland.
This castle is believed to be one of the most attacked ever in the world, with over 26 battles where people tried to take over the castle.
It is built on top of an extinct volcano, called Castle Rock.
There are other buildings in the castle area, like a chapel, barracks and even a royal palace.
(from: wikipedia - edinburgh castle)
Kid Facts - Blast from the past: Manitoba