Photography lovers will not want to miss 50 Greatest Photographs of National Geographic, which will open at the ArtScience Museum on Aug 17. Now that the National Geographic store at VivoCity has closed down, this is a rare opportunity to catch iconic works from revered travel-photographers like Sam Abell and Joanna Pinneo, the latter who is well-known for her depictions of climate change in sub-Saharan Africa and its inhabitants (see picture). There will also be darkroom workshops and guided tours for a more interactive experience. Closing date is unconfirmed as of press time, but the exhibition should be on for about two months.