Very few of us will work at a single job our whole lives. Even fewer will work on a single, self-led project our whole lives. Spanish octogenarian Justo Gallego Martinez is an exception: He's been the sole designer, engineer, and construction worker on a cathedral in Madrid since 1961.
The Queen may have Buckingham Palace, Nicholas Cage may own half of Europe's castles, but Don Justo has this beautiful cathedral of trash. He's been building it in Madrid for 50-odd years now, and is almost finished.