Tour the Nine Steepest Residential Streets in AmericaAlissa Walker2/27/14 9:00am2346EditPromoteGo to permalinkAs a big urban walker, I like to head for the hills. So when I stumbled upon this list of the steepest streets in the U.S., I just had to see what they looked like, and I started planning a trip to hit all of the most insanely steep stretches of our American streets. The scariest thing? People live (and park!) on them.