Reuters photojournalists submit some 1,500 photos every day, creating an annual archive of over half a million images, bearing witness to events as they happen across the globe.

Our World Now 5 captures 2011 in over 350 powerful photos by award-winning Reuters Photojournalists, presenting a fresh take on the most memorable worldwide events and stories of the year

Here, in well over 500 extraordinary photographs, is the story of our new century: moments that changed the world; trends that touch all our lives; challenges that will shape our future.