USA, California, green hills and oak trees with old barn in background

USA, California, Altamont Pass, wind turbines

USA, California, Altamont Pass, wind turbines, elevated view

USA, California, Altamont Pass, wind turbines, low angle view

Austria, Styria, Schladminger Tauern, Tamsweg, alpine landscape

Austria, Carinthia, Malta Valley, Fallbrook waterfall

'Wind energy, Altamont Pass on Route 580 in Livermore, CA'

'Wind energy, Altamont Pass on Route 580 in Livermore, CA'

People,s Republic of China, Beijing, Great Wall, Jin Sha Ling section

Golden sunlight on sand dunes

Dusk on a windblown dusty evening in the Palouse region of Washington state - a lone truck is streak

Evening image of the rolling wheat fields of the Palouse region of Washington state. Shot taken near

Evening image of the rolling wheat fields of the Palouse region of Washington state. Shot taken near

Shot of rolling grain fields and the town of Steptoe, Washington taken from Steptoe Butte in the Pal

Italy, Tuscany, Val d'Orcia, rural road between hilly fields

USA, Virginia, Shenandoah National Park, rock formation on hill top

Man walking over hill by lake

jinshanling,china,ancient,two people,adults,long,vast,expansive,ming dynasty,outdoor,day,rolling hil

Winter landscape snow in the trees of rolling hills Kleiner Feldberg Taunus Hessia Germany

Cross with death boards at the street side Wuehnried bei Gotteszell Bayerischer Wald Lower Bavaria G

Landscape at the Aba Huab River in Damaraland, Namibia, Africa

Stolzenfels Castle, Kapellen, Rhine River, Western Germany, Europe

Co Armagh, Slieve Gullion, Ireland

Overview of Cactus Forest, Oaxaca, Mexico