In this paper, I examine Stilz's account and defense of territorial sovereignty in the light of the view that there are landmarks (monuments, geological structures, and landscapes) which are located in and subject to the jurisdiction of sovereign states, but which are deemed to be of outstanding value to humankind as a whole, irrespective of whatever economic value they might have. Put differently, I am interested in bringing Stilz's account to bear on the notion of humankind's common heritage. I stress "heritage," for quite often, humankind is said to own global systemic systems such as transboundary rivers and forests, species, unoccupied areas of the earth such as Antarctica and the oceans, whose value partly reside in the fact that they contain extractable natural resources. The question of who, if anyone, has rights over natural resources with extractive value is attracting growing interest in the contemporary political philosophy of territory, justice, and natural resources. 1 By "heritage," however, I have in mind something else: I mean that which we inherit from our ancestors, which we value here and now and which we seek to transmit to our successors for reasons which have nothing to do with its extractive value. The question of who, if anyone, has rights over humankind's common heritage thus understood is largely neglected. To the extent that contemporary moral and political philosophy addresses interests outsiders might have in the state's decisions regarding its territory, it focuses on would-be migrants (who have an interest in establishing residence on that This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.