There are many other types of lightning that are not associated with storms, but the mechanism of a separation of positive and negative charges in the atmosphere still cause them. Some of the more common ones are St. Elmo's fire, air discharge, sprites, heat lightning, and ball lightning.
The world's largest steam shovel surviving intact is a Marion machine, dating from either 1906 or 1911, located in the small American town of Le Roy, New York. It was listed on the National Register of Historic Places in 2008.
Kimberley Diamond Mine, South Africa. The Kimberley Diamond Mine (also known as the Big Hole) holds the (disputed) title of being the largest hand-dug hole in the world. From 1866 to 1914 50,000 miners dug the hole with picks and shovels, yielding 2,722 kg of diamonds. Attempts are being made to have it registered as a world heritage site.