Playgrounds with spyglass

Spyglass / binoculars / periscope

— toys installed on the site that replicate real optical instruments: spyglasses are designed for one eye, binoculars for two, and the periscope has a curved body in which the lens is located much higher than the eyepiece. Anyway, such equipment primarily expands the possibilities in marine-themed games, although it can be useful for other undertakings. It should be noted that in modern sites there are both dummies and actually operating optical devices that give some increase (although not high).