Hollow Bastion is dominated by its eponymous castle which is the world's seat of power. The castle gate is accessed through a moving platform in the Rising Falls. Underneath the entrance are the Waterways which provide plumbing throughout the castle. The Entrance Hall of the castle is directly through its imposing marble doors. The famed Hollow Bastion Library is here, containing knowledge collected by its former king. Also accessible from the Entrance Hall is the Lift Stop, a complex series of elevators which provide transportation to different parts of the castle. Its peculiar construction forces travelers to exit to an exterior portion of the castle called the Great Crest in order to reach the Castle Chapel. The chapel segues to the Grand Hall.