TIL: The U.S. Army Corps of Engineers drained Niagra Falls in 1969. It ended up attracting more visitors than any other feat attempted at the falls. The engineers wanted to find a way to remove the unseemly boulders that had piled up at its base since 1931, cutting the height of the falls in half...
smithsonianmag.comSubmitted by floof_mcgenius t3_120pskx in todayilearned