The Giant Castle is not surprisingly a big castle. It’s populated by villagers and you could probably look at yourself as the king or queen of the castle. It’s especially when the night falls that it becomes beautiful with its lit up towers and still lively interior with villagers walking around looking rather confused as usual.
It’s the perfect fortress to protect you and the villagers from unwanted guests such as zombies and creepers. The walls are thick and the gate is heavy so intruders are unlikely.