- Spiral staircases could be designed
so that defenders had the
advantage when fighting attackers.
.
Space-saving:
- Castles were often short on
space and spiral staircases were more compact than straight ones.
Observation:
- Some spiral staircases were built in towers and provided a way for sentries to keep an eye out for approaching enemies.
Escape:
- Secret spiral staircases were sometimes
used as a hidden passage for the castle's inhabitants to escape in case of attack.