Konrad Wothe / Looking up the roots of a Strangler / Curtain Fig Tree (Ficus virens) rainforest, Curtain Fig Tree NP, Atherton Tablelands, Queensland, Australia, October

Tim Laman / Aerial view of an oxbow lake in the Kinabatangan Wildlife Sanctuary, Sabah, Borneo, Malaysia

Ingo Arndt / Beech (Fagus sp) trees in autumn, Torres del Paine National Park, Patagonia, Chile

Jeff Foott / Bridal Veil Falls and rainbow, Yosemite National Park, California

Jeff Foott / Coniferous trees in mist, Yosemite National Park, California

Shane P. White / Lake and mountains, Lake Pehoe, Cuernos del Paine, Torres del Paine National Park, Patagonia, Chile

Ingo Arndt / Tidal flats at low tide, Wadden Sea National Park, North Sea, Schleswig-Holstein, Germany