
The curtain wall is a stoned wall to protect the inside of the castle. Walls were often connected by a series of towers or mural towers to add strength and provide for better defense of the ground outside the castle.

The turret is a small part of the castles. Its a project vertically from the wall of the building. Its used to cover fire to the adjacent wall in the days of military. Its mainly use for a decorative purpose. the turret usually have a circle top. It may have a staircase but, its not higher than the rest of the castle.
This part of the castle is the keep. The keep is a tower, which is the strongest part of the whole castle. The keep is known as the dungeon. it was also known for the storage room, where they store food, water, and armer supplies to keep the castle running. The keep has four levels of the storage. Chamber, great hall, guardroom, and basement.
This picture is a Medieval Castle labeled parts. It shows the keep, turret, curtain wall, outside kitchen, gatehouse, well, flanking tower, and a bailey. This was the castle where the kings, queens, knights, Baron, princes, princesses, lords, ladies, bishops, watchmen, Squire, Atillator, Messengers, Cooks, Chaplain, Castilain, Jester and slave. There might also be a blacksmith and an armoury in the yard. The king and Queen don't usually live in a castle. They would live in their own manor house. They would send a baron to take charge in a castle.