The "Batman Emblem" is the signature symbol on the chest of the fictional superhero Batman. Batman’s emblem has appeared in various versions since the character’s inception. This version was illustrated in Adobe Illustrator CS3.
This logo depicted on this fence
http://wikimapia.org/#lat=59.9029767&lon=30.323824&z=19&l=1&m=b&search=%D0%BA%D0%B8%D0%B5%D0%B2%D1%81%D0%BA%D0%B0%D1%8F%205
"System" icon from http://tango.freedesktop.org/Tango_Desktop_Project
Since version 0.8.90 Tango Project icons are Public Domain: http://tango.freedesktop.org/Frequently_Asked_Questions#Terms_of_Use.3F