Created by Arne Sava
Contributed by Mark Simonson
Contributed by Miguel Sanz
Contributed by Nick Sherman
Contributed by Florian Hardwig
Contributed by David Jonathan Ross
Contributed by Greg Yerbury
Photo(s) by Bart Solenthaler on Flickr.
Contributed by Stephen Coles
Contributed by Herb Lubalin Study Center
Contributed by Jed Chisholm
Contributed by Peiran Tan
Contributed by Indra Kupferschmid