Readers had road trips on their minds when they viewed in huge numbers a blog from March -- our second-most popular story of the year -- that sought to provide a trip map of landmarks in every U.S. state, with maximum efficiency baked into the cake.
The "cake" came courtesy of algorithmic wizard Randy Olson, a University of Michigan doctoral student. You can start in any state on his map, and so long as you follow the path Olson laid out, you'll be taking the most efficient route. Start your engines!
The title above says it all. Yep, in this video, our bronze medalist for 2015, we wondered what the "normal" amount of sex to have might be, and you seemed extremely interested in the answer. What was the answer? You'll have to watch the video, if you haven't already.