|Muscle Princess's castle|
|Name||Muscle Princess's castle|
|Location||Land of Ooo|
|Notable inhabitants||Muscle Princess|
Muscle Princess's castle is a small castle inhabited by Muscle Princess located in the forest near the tree of Mrs. Yoder. So far, its appearance is in "To Cut a Woman's Hair." It is unknown whether this castle or the area surrounding it is part of Muscle Princess's kingdom, or if there are any other inhabitants besides Muscle Princess. Her bedroom in her castle is seen in "Princess Monster Wife."