A navigation system, comprising: at least one processing device configured to: determine, based on an output of one or more position sensors associated with the navigation system, a current location of at least one component associated with the navigation system; determine a destination location different from the current location; use map data to identify at least one mapped entity; acquire, from one or more image acquisition devices (122, 124, 126), while a user of the navigation system is located in an environment and navigating from the current location to the destination location, a plurality of images representative of the environment; determine, based on the plurality of images, whether the at least one mapped entity is visible to the user; when the at least one mapped entity is determined to be visible to the user: analyze, while the user is navigating from the current location to the destination location, the plurality of images to derive visual information including at least one visual aspect of a landmark object associated with the at least one mapped entity and appearing in the environment within a field of view of at least one of the image acquisition devices (122, 124, 126); determine, based on the visual information derived while the user is navigating, one or more instructions for navigating from the current location to the destination location, wherein the one or more instructions include at least one reference to the visual information derived from the plurality of images; and deliver to the user the one or more instructions; and when the at least one mapped entity is determined not to be visible to the user: determine one or more instructions for navigating from the current location to the destination location, wherein the one or more instructions include at least one reference to the at least one mapped entity and at least one reference to an object obscuring the at least one mapped entity from the user's view; and deliver to the user the one or more instructions. determine, based on an output of one or more position sensors associated with the navigation system, a current location of at least one component associated with the navigation system; determine a destination location different from the current location; use map data to identify at least one mapped entity; acquire, from one or more image acquisition devices (122, 124, 126), while a user of the navigation system is located in an environment and navigating from the current location to the destination location, a plurality of images representative of the environment; determine, based on the plurality of images, whether the at least one mapped entity is visible to the user; when the at least one mapped entity is determined to be visible to the user: analyze, while the user is navigating from the current location to the destination location, the plurality of images to derive visual information including at least one visual aspect of a landmark object associated with the at least one mapped entity and appearing in the environment within a field of view of at least one of the image acquisition devices (122, 124, 126); determine, based on the visual information derived while the user is navigating, one or more instructions for navigating from the current location to the destination location, wherein the one or more instructions include at least one reference to the visual information derived from the plurality of images; and deliver to the user the one or more instructions; and analyze, while the user is navigating from the current location to the destination location, the plurality of images to derive visual information including at least one visual aspect of a landmark object associated with the at least one mapped entity and appearing in the environment within a field of view of at least one of the image acquisition devices (122, 124, 126); determine, based on the visual information derived while the user is navigating, one or more instructions for navigating from the current location to the destination location, wherein the one or more instructions include at least one reference to the visual information derived from the plurality of images; and deliver to the user the one or more instructions; and when the at least one mapped entity is determined not to be visible to the user: determine one or more instructions for navigating from the current location to the destination location, wherein the one or more instructions include at least one reference to the at least one mapped entity and at least one reference to an object obscuring the at least one mapped entity from the user's view; and deliver to the user the one or more instructions. determine one or more instructions for navigating from the current location to the destination location, wherein the one or more instructions include at least one reference to the at least one mapped entity and at least one reference to an object obscuring the at least one mapped entity from the user's view; and deliver to the user the one or more instructions.