The fireworks are over and the grill has cooled, but if you’re still feeling patriotic after July 4th, here’s a challenge: See how well you can draw the outlines of all 50 states from memory.

Have you ever drawn a map to show someone how to get to your house? Or how to get from your house to the park or the corner store? If you have, you know how to draw, how to visualize, and how to ...