Silhouette of dead acacia tree (killed by elephants) at dawn with Mt Kenya in the background, Ol Pejeta Conservancy; Kenya

Hawaii, Oahu, Kaneohe Fishponds At Heeia Area, Mountain In Background

Zebra on grassy plain with 4x4 and Mt Kenya in background, Ol Pejeta Conservancy; Kenya

Hawaii, Molokai, Kapuaiwa Coconut Grove, Palm Tree Trunks Silhouetted At Sunset, Ocean Background Orange Yellow A29E

Man On Raft In Mountain Area

A lake in Riding Mountain Provincial Park at sunset; Manitoba, Canada

Wooden Bridge Over A River With Mountains In The Background; Vang Vieng Laos

Wooden house and village church with drifts of snow and mountain peaks; Filzmoos, Austria

Silhouette of woman looking through binoculars in front of Mt Kenya at dawn, Ol Pejeta Conservancy; Kenya

Silhouette of woman looking through binoculars in front of Mt Kenya at dawn, Ol Pejeta Conservancy; Kenya

Panoramic view of the aurora borealis over the frozen Knik River with Pioneer Peak in the background.

A Yosemite National Park visitor stands at Taft Point, which overlooks Yosemite Valley and El Capitan; California, United States of America

Silhouette Of Tree On Grassy Knoll, Mountain In Background B1628