The Elder Scrolls V: Skyrim Tips

Additional Map Markers
When in Whiterun, visit Dragonsreach, where the Jarl resides. When inside the stronghold, go towards the throne and take the staircase on the right. Once you reach the top, on the left is a table with a map and flag markers on it. These markers denote key locations in Skyrim. Looking at each flag and selecting them will add their location to your world map.