1. A non-transitory computer-readable storage medium storing a program for implementing a dynamic three-dimensional (3D) lung map view for navigating a probe inside a patient's lungs, the program including instructions which, when executed by a processor, cause a computing device to: load a navigation plan into a navigation system, the navigation plan including a planned pathway shown in a 3D model generated from a plurality of CT images; present guidance for inserting a probe into a patient's airways, the probe including a location sensor in operative communication with the navigation system; register a sensed location of the probe with the planned pathway; select a target in the navigation plan; present a view of the 3D model showing the planned pathway and indicating the sensed location of the probe; present guidance for navigating the probe through the airways of the patient's lungs toward the target; iteratively adjust the presented view of the 3D model showing the planned pathway based on the sensed location of the probe; and update the presented view by removing at least a part of an object forming part of the 3D model.