We just learned about the Hohensalzburg Fortress.
Another famous castle is Windsor Castle, built around 1000 AD in Windsor, Berkshire, England.
Unlike a lot of other castles, this one has been lived in for a very long time by the royal family of England, like the King or Queen.
It covers over 10 acres, and has different areas called "wards" that have apartments or even a church called St. George's Chapel.
The queen of England still lives there on most weekends, and the royal family uses the castle as a place to have parties and do business.
(from: wikipedia - windsor castle)
Kid Facts - Blast from the past: Veracruz