Winston Churchill was the British Prime Minister during World War II. He was widely credited with being one of the strategic masterminds that made the Allied victory possible. Churchill was also a prolific writer and won the Nobel Prize for Literature. This shot was snapped in the Parliament Buildings in Ottawa, Canada after the photographer had annoyed Churchill by taking away his cigar. Widely considered one of the most famous portrait photos ever taken. Date: 1941. Photographer: Yousuf Karsh.