Last summer, Sacha Goldberger decided he would take on a very interesting project. He assembled a team who helped him create an outdoor studio at Bois de Boulogne, a park located near Paris that’s 2 1/2 times the size of New York’s Central Park. He stopped joggers, asking them for a favor – would they sprint for him and then pose right after for his camera? Many obliged. Out of breath, these joggers showed an overwhelming amount of fatigue on their faces.