October marks Breast Cancer Awareness Month, an international effort to focus attention on the disease, which affects both women and men. The color pink can be seen worn by professional athletes, runners raising funds for charity, and monuments lit up in the color. -- By Lloyd Young

"Umbrellas", the sculpture by Giorgos Zogolopoulos is illuminated in pink light to mark Breast Cancer Awareness Month in Thessaloniki in northern Greece on Oct. 21. (Alexandros Avramidis/Reuters)