I love maps of Middle-Earth. Whether it's Tolkien's own maps or the ones in the Atlas of Middle-Earth by Karen Wynn Fonstad. The thing about these sorts of maps is that not only can you plot out where things in J.R.R. Tolkien's epics happened, but they stimulate the imagination for further adventures.
So imagine just how much I like this large full color map of Beleriand (from the First Age of Middle-Earth) and it's illustration of all the places that are talked about in The Silmarillion.
It's a beautiful piece of work by Sirelle. Make sure to look at the full size version of this or you're missing out on a lot of the details.