Mental Floss

NEWS

















Elvis Presley in concert in Milwaukee, Wisconsin on April 27, 1977.

Elvis Presley spent a portion of his later years behaving somewhat erratically during his live performances, insulting his back-up singers and even changing lyrics to lash out at the hotel hosting him.

Jake Rossen
Personal airplanes aren't quite reality yet—and sadly, neither are personal space ships!

Everyone from chocolate-making companies to some of history's greatest minds (think Ben Franklin and Nikola Tesla) weighed in on what they thought life would be like in the 21st century.

Ellen Gutoskey