A simple pond. Once used to relax, meditate, and breathe fresh air.
Full of mysteries and dangers...
This place was once habited by a smart kingdom, obsessed with something, they vanished in time..
Small manor/hotel for peasants to live in.
Where the king tells people what to do. (there might be a secret room somewhere idk...)
Where the portal is located, some elements of the end and overworld collide.
Library inside the castle. A place to read a book, we might put like a chest and some stories we wright...would be fun;)
Church inside the castle, no religion in particular, just thought that there would need a place to worship in an ancient castle.