Binoculars are interactable objects located on many maps. Interacting with them triggers a sequence of camera movements which results in a scenic view of the entire area. It gives players a good view of the area, but it also prevents any other actions during usage until pressing Esc. Many of the maps' Exploration Goals include using these binoculars.
Players can tell whether they have not yet interacted with Binoculars on a particular map by taking a look at the minimap icon. The lens will be blue if the player has interacted with it, black if not.