The Throat of the World is the biggest mountain in Skyrim, and possibly all of Tamriel.
This sounds pretty impressive, right? What would you compare it with in the real world? I would say Everest or K2.
Since the first day i started playing the game, something didn't feel right with distances when looking at them on the map and travelling and distance covered in time on the ground. I don't like to use a horse, so i expected it would take me a while to reach destinations. It never did. So i tested it to be sure. Here are two examples:
1. Travelling from Whiterun to Rorikstead. If you have a look at the map, it seems a pretty big distance.

Walking with Always Run toggled: 19th 07:14am - 19th 08:46am
Fast travelling the same distance on foot: 19th 06:58am - 19th 01:40pm
At least with fast travelling it took some more time to get there which is a bit better representation of the distance involved, but both examples show an unforgivable lack of attention to detail.
2. Travelling from Valtheim Towers to Helgen. According to the game, the biggest mountain in Skyrim sits right in between these two locations. Wrong again!

Walking with Always Run toggled: 19th 12:43pm - 19th 04:29pm
On the way back to Valtheim with fast travelling the same distance on foot: 19th 04:31pm - 19th 10:25pm
Conclusion. This is not a continent map, but a map of your county!!!
How could they make such a big mistake???
Especially when the game is so good in many other areas...