The Never Ending Flatness.
At least 5 bajillion years ago, glaciers moved through North America and carved all sorts of interesting landforms into the earth. They apparently forgot about North Dakota. In the Red River Valley and the surrounding area you would be lucky to find a hill that goes down more than 20 feet. Especially in Fargo, where you can see for miles in any direction and the biggest hill probably has a slope of 5°. On the other hand, what Fargo lacks in hills, it makes up for doubly in bars.