Tim Fitzharris / The Windows Section from Double Arch at sunrise, Arches National Park, Utah

Tim Fitzharris / The Windows Section from Double Arch at sunrise, Arches National Park, Utah

Tim Fitzharris / Cathedral Rock at sunset, Coconino National Forest, Arizona

Tim Fitzharris / Lightning strike near rock formation, Church Rock, Red Rock State Park, New Mexico

Jeff Foott / Milky way over arch, Turret Arch, Arches National Park, Utah

Yva Momatiuk & John Eastcott / Sandstone rock formations, Vermillion Cliffs National Monument, Arizona

Ingo Arndt / Milky way over sandstone rock formations, Badlands National Park, South Dakota

Ingo Arndt / Sandstone rock formations, Badlands National Park, South Dakota

Ingo Arndt / Sandstone rock formations, Badlands National Park, South Dakota

Ingo Arndt / Sandstone rock formations, Badlands National Park, South Dakota

Ingo Arndt / Sandstone rock formations, Badlands National Park, South Dakota

Colin Monteath/ Hedgehog House / Wildflowers and sandstone rock formation, Flinders Ranges, South Australia, Australia