Rock formation in Moab, Grand Canyon, Utah

Varmland, Sweden

Bimmah Sinkhole, Oman

The Grotto, Georgian Bay - Bruce Peninsula National Park

Northern Lights at Kirkjufell

Reed Flute Cave

Devils Tower - Devils Tower, Wyoming

Desolation Wilderness, Sierra Nevada, CA

Hume Lake, Sequoia National Forest of Fresno County, California by Lou Lu

Badlands National Park

Lenticular Clouds Near Estes Park, Colorado

Marina Bay Sands, Singapore

Spring in the Northwoods - Oneida County, WI, USA