While you can't actually navigate the map since it's really a graphic design for a poster on sale on Etsy, the details are great. You can follow along the yellow-colored Kingsroad from the North all the way to King's Landing. On the Esty page, it says the map has "lots of details with almost every little town, castle and stronghold marked as well as mountains, forests and roads."
Reddit user selvag posted his map to Reddit this week. One Redditor joked in the comments section, "Unable to calculate route from Meereen to King's Landing." Indeed the map cuts off on the eastern part of Essos where Meereen would be located, but selvag has some witty advice for that: "Jet ski across the Narrow Sea."