A sonar profile view of SS City of Rio de Janeiro above a painting of the steamer. Coda Octopus (top) and painting of SS City of Rio De Janeiro /NOAA (top); Mystic Seaport (bottom) hide caption

itoggle caption Coda Octopus (top) and painting of SS City of Rio De Janeiro /NOAA (top); Mystic Seaport (bottom)

Italian military police officers stand in front of anti-Olympics demonstrators in February 2006 in Turin, Italy, on the eve of the opening ceremony of the 2006 Winter Games. Paco Serinelli/AFP/Getty Images hide caption

itoggle caption Paco Serinelli/AFP/Getty Images

Juanita Alvarado (right), a community health worker at the Transitions Clinic in San Francisco, helps a patient. courtesy of Transitions Clinic hide caption

itoggle caption courtesy of Transitions Clinic