National Geographic has digitized its entire map archive—every map the magazine has published since 1888, more than six thousand of them—but you won’t be able to browse through it. (Subscribers can access the maps through their digital archive by consulting the issues they first appeared, but, again, no public access to the database.) What they’re doing instead is posting them through social media channels, forming the basis of “Map of the Day” posts on Facebook, Instagram and Twitter. Can’t help but feel they’re teasing us a bit.