If you are a Social Studies teacher and wish for students to see the history and geography in one map, History Pin is for you. This video explains it best!
Are you looking for maps that show total population, or other such statistical information? Instead of just having to refer to a chart (boorrriinnngggg), this can give you an immediate “snapshot” for the information you seek. The site is Worldmapper.org, and quoting from their homepage: Worldmapper is a collection of world maps, where territories are re-sized on each map according to the subject of interest. Many thanks to Liz!