We might be a rectangle, but we share our four borders with seven other states. Do you think you know what they are? I wasn't sure I did... 

This is one of those things you probably could have done really easily in grade school, but now you just feel like an idiot if you can't name them all. Hey, don't sweat it though -- it's just for fun. 

Here's a hint: Ever been to the Four Corners? That'll knock out three of the seven. Take the quiz from Mental Floss and see if you can name all seven states that border Colorado.

Not to brag, but I did get all seven right.