The McMurdo Dry Valleys are a row of valleys west of McMurdo Sound, Antarctica. They are so named because of their extremely… Free Photo from public domain license 
There's not much to graze on for these horses in the rugged terrain north of Big Bend National Park in the "Trans-Pecos"… Free Photo from public domain license 
Cacti in a field along Park Road 4S, east of Longhorn State Par, near Burnet, Texas. Original image from Carol M.… Free Photo from public domain license 
Mountain station in Obereggen, the Dolomites, South Tyrol, Italy Free Photo from public domain license 
Saguaro Cactus near Tucson, Arizona. Original image from Carol M. Highsmith’s America, Library of Congress collection.… Free Photo from public domain license 
A longhorn steer appears to pose in a thicket in rural Kinney County, Texas. Original image from Carol M. Highsmith’s… Free Photo from public domain license 
Nunavut, in northern Canada, the largest and newest federal territory of the country. Original from NASA. Digitally enhanced… Free Photo from public domain license 
The city of Chateaubriant, France. Original from NASA. Digitally enhanced by rawpixel. Free Photo from public domain license 
