This is what I love about this game -
You decide you want to do a certain quest so you mark it on your map, fast travel to the closest location and head to the marker. On the way you pick some flowers, kill a bit of wildlife and happen upon a game trail. Now the tough crossroads decision... hit the game trail for a little ways because you can always find the marker on your map but not the trail! On the game trail you find a tower guarded by some bandits. Cleaning that up you see a ruin down below, guess a quick peak in there wouldn't hurt. 30 minutes later the ruin is cleared and you're ass deep in loot so you pop out to fast travel back to town to fence and put away this new loot. But wait, a dragon is in the sky halting your fast travel. You kill it, loot it, fast travel back to town. Now your storing stuff, mixing potions, making leather, fencing, selling and son of a... you need to feed (since you're a vampire) so you take care of that real fast. Now.... to head back to that marker. You fast travel to the ruin you did last and make your way to the quest marker. Back on the main road again you find a guy in need. He tells you about a certain book he needs from a cave not so far away and marks it on your map and promises you a nice reward... Might as well knock that out since it's right here right? Turns out the book is a trap and it sends you to tower somewhere else on the map completely. Now you can't fast travel because you need to fight your way out. After you get out of that cave and you go to fast travel you notice a very large fire up ahead near a wooden bridge... ETC ETC ETC.