A bit of a Bouvard and Pécuchet thing, which basically means an opportunity to wallow in the art of procrastination, led by vagrant and insidious thoughts, and a continuous flow of new found interests and awes, whether momentary or enduring, often seemingly disparate.
petermann's atlas of physical geography, heights of the principal mountains in the world, map of mountains and rivers of the western and eastern hemisphere and bird's eye view of the black hills