Imagine you are playing with your toys and you build a big castle out of blocks or Legos. Kolossi Castle is like a big castle that was built a long time ago by real people. It's located on the island of Cyprus, which is far away from here.
Long, long ago, a group of people called the Knights of St. John needed a place to live and protect the island from enemies. So, they decided to build a castle in Kolossi. The castle was built on top of a hill, which made it harder for enemies to attack.
The castle had very tall walls all around it, and the knights could look out from the top to see if any enemies were coming. Inside the castle, there were rooms where the knights would sleep and eat. There were also stairs that went up and down to different parts of the castle.
Kolossi Castle was also built next to a big river, which was used to bring water to the castle. The knights needed water for drinking, cooking, and to clean their clothes.
Nowadays, the castle is not used anymore, and people can visit it to see what it looks like. Visitors can see the tall walls, the rooms, and the stairs that were used by the knights long ago. People can also learn about the history of the castle and what life was like for the knights who lived there.