Take Stonehenge in England, which like me involves a group of stone pillars erected in the ground. Though far out in the countryside, guards needn't be present for the tourists to observe the regulations and stand outside the railings. They don't sneak in for a closer view.
先舉和我同類的英國的巨石祭壇為例，它們也是豎立在地上的一群石柱，雖然位在偏遠郊區，但不論有沒有警衛看守，民眾都很規矩的站在欄干之外遠觀，絕不會想要偷溜進去近一點看。