Contributed by Garrison Martin
Contributed by Ufuk Sarp Selçok
Photo(s) by Bart Solenthaler on Flickr.
Contributed by Stephen Coles
Contributed by Dafi Kühne
Contributed by Jay Mellor
Photo(s) by mikeyashworth on Flickr.
Contributed by Florian Hardwig
Contributed by Herb Lubalin Study Center