Afghan Girl: http://s.ngm.com/afghan-girl/images/afghan-girl-615.jpg

Napalm Girl: http://cmsimg.navytimes.com/apps/pbcsi.dll/bilde?Site=M6&Date=20120608&Category=NEWS&ArtNo=206080309&Ref=AR&MaxW=640&Border=0&Iconic-Vietnam-War-8216-napalm-girl-photo-turns-40

Robert Capa Image: http://i.dailymail.co.uk/i/pix/2013/10/19/article-2467382-18D6CB3D00000578-871_964x619.jpg

Tank Man: http://graphics8.nytimes.com/packages/flash/photo/20090602-Lens-Behind-Tianamen/20090603-tank-400px.jpg

Kent State: http://iconicphotos.files.wordpress.com/2009/06/kentstate-jpg.jpeg?w=700

Falling Man: http://upload.wikimedia.org/wikipedia/en/0/05/The_Falling_Man.jpg

Oklahoma Bombing Image: http://bennernotes.files.wordpress.com/2012/04/okcity.jpg

Raising the Flag on Iwo Jima: http://upload.wikimedia.org/wikipedia/en/a/a1/WW2_Iwo_Jima_flag_raising.jpg

Flower Power Image: http://img.izismile.com/img/img5/20120604/640/the_most_affecting_iconic_photographs_640_28.jpg

Obama Hope Poster: http://2.bp.blogspot.com/-15maO4ufdus/UIdvhzQnt6I/AAAAAAAANB4/O4yvx416fuk/s1600/obama-hope-poster-small.jpg

Migrant Mother: http://media1.artspace.com/media/dorthea_lange/migrant_mother_nipomo_california/dorthea_lange_migrant_mother_nipomo_california_1024x768.jpg

Black Power Salute: http://static.guim.co.uk/sys-images/Guardian/About/General/2012/3/28/1332936684595/OLYMPICS-BLACK-POWER-SALU-008.jpg

Times Square Kiss: http://upload.wikimedia.org/wikipedia/en/9/95/Legendary_kiss_V–J_day_in_Times_Square_Alfred_Eisenstaedt.jpg

Hindenburg Disaster: http://www.historyinanhour.com/wp-content/uploads/2011/05/Hindenburg-disaster.jpg

Thich Quang Duc: http://upload.wikimedia.org/wikipedia/en/3/38/Th%C3%ADch_Quảng_Đức_self-immolation.jpg

Vulture and Child: http://iconicphotos.files.wordpress.com/2009/08/kevin-carter-vulture.jpg?w=700&h=466

Sandy Hook Image: http://static4.businessinsider.com/image/50cb671769bedd7e7f000004-1887-986/sandy%20hook%202.jpg

Marilyn Monroe Image: http://www.trbimg.com/img-501c25da/turbine/lat-marmon-whit_m81nf9pd20120803122750/620

Einstein Image: http://all-that-is-interesting.com/wordpress/wp-content/uploads/2012/06/iconic-photos-1950-einstein.jpg

Challenger Disaster: https://lh6.googleusercontent.com/-N0Ule7ozDQ8/TXAgNn938aI/AAAAAAAAA4s/f9INhZjKMXE/s640/Challenger.jpg

Winston Churchill Image: http://iconicphotos.files.wordpress.com/2009/07/karsh_churchill.jpg?w=700

9/11 Image: http://hrperspectives.files.wordpress.com/2011/09/060829_911whererthey_flag_new-grid-4x2.jpg

Detainee Image: http://1.bp.blogspot.com/-xt4uXwCuMOk/TvD3mpxQAHI/AAAAAAAAd9s/vjxtkQWShEM/s1600/abughraibhood.gif