Finally, time travel made possible, not by NASA, but by YouTube. With YouTube Time Machine (genius, right? Why did I not think of this?) you pick a year from 1860 to 2010, and are treated to a variety of utterly random videos from that year. Clips from the musical Annie in 1982? Saw it. Mickey D’s commercial from ’86? Watched it. Sandlot trailer from 1993? Loved it. Oh, for the days when Mark Walhberg was still Marky Mark.