Vacationland: Mapping History in Maine, the Osher Map Library and Smith Center for Cartographic Education’s latest exhibition, “looks at tourism through the lens of travel and transportation, quite literally the mapping of tourism in Maine from the mid-19th century to the mid-20th century. This exhibition invites you to think about the changing landscape interventions created by and for tourists, as well as the impact such changes had on people living in Maine year round, and upon the environment.” This exhibition opened on 15 June and runs until 11 October; reservations required for social distancing reasons to visit the gallery in person. It’s not yet online; the Osher usually gets an online version up a little later on.