There are some places where Mother Nature leaves pretty strong hints that they are off limits to mere humans. One such place is the deadly Bell Rock Reef, situated 11 miles off the east coast of Scotland. For centuries, brave (or foolish) seamen have found themselves in a watery grave at the hands of these almost permanently submerged rocks. However, Robert Stevenson hatched a plan to build a lighthouse on them. Although widely ridiculed at the time, against all odds he was successful. The lighthouse continues to save lives to this day.