All photography by Marcus Hasheider unless noted below.
Getty: pp. 30 (PHAS/UIG), 52 (Brent Lewis/The Denver Post), 64 (Andrew Errington), 75 (Tim Graham), 76 (Education Images/UIG), 131 (Scott Olson), 166 (Pierre WITT/Gamma-Rapho), 180 (Wendy Maeda/The Boston Globe)
Shutterstock: pp. 6 (Schweinepriester), 9 (STANZI), 10 (John Marquess), 98 (Suphachok Rengsomboon), 127 (lbtn), 131 (IgorGolovniov), 134 (Fanfo), 165 (Edward Hasting-Evans), 179 (alexpro9500), 199 (Asian Images)
Steve Troletti Photography: title page