The largest item on our walls here at home is a map of North America, probably 6 feet square. The fun part? It’s in Cyrillic. My sister Laura brought it back as a gift (in 4 paper rolls) from her six months in Russia several years ago. It was expensive to get mounted, even without a cover, but it was worth it. I was thinking about maps because earlier this week I downloaded and installed EarthDesk, a MacOS X program which replaces your desktop picture with an updating map of the world, with various settings and projections. Very nifty program. If you’re in the market for some wall maps, try Raven Maps, which offers relatively inexpensive large maps, including the option of lamination (worth the slight extra $). Most are for the United States (state by state), but some more global options. For trail maps, I’m more of a neophyte, as I don’t do much hiking, but I like the Tom Harrison Maps, at least for California. I don’t have many older maps, but I’m always on the lookout for interesting maps. A long time ago, I worked at a Library of Geological Sciences… now there’s a home for maps!