I went to Venice in 2017 with a list of "must-sees," one of which was the Fra Mauro original map. I had previously seen a replica, and it was breathtaking. (That thing is eight feet tall, or 2.4 meters, with gold lettering and all)<p>The map was housed in the Marciana Library in Venice. Unfortunately, nowhere on the internet did it mention that the map had been removed for restoration. This prevented me from seeing it in person, and perhaps I never will.<p>Naively, I thought that the library's website would inform visitors about such changes. However, the reality is that website updates often lag behind changes in exhibits. Lesson learned: I now call the places I want to visit to confirm their hours and current offerings.