Hikers break with Mount Foraker on the left and Mount Crosson on the right, in distance, Denali National Park, Alaska, United States of America, North America

Trekkers walking over Cho La Pass with Ama Dablam on left and Arakam Tse on right, Solukhumbu District, Nepal, Himalayas, Asia

View of the Piazza de San Marco (St. Mark's Square), facing the Basilica of San Marco (St. Mark's Basilica) with the Procuratorie Vecchie stretching to the right and the Correr Museum on left, Venice, UNESCO World Heritage Site, Veneto, Italy, Europe

View of shops in Santa Ponsa, Majorca, Balearic Islands, Spain, Mediterranean, Europe

A hiker looking west from a cliff near Zuni Abyss at Grand Canyon, Zuni Point in the background just right of center, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Sherpa guide walking over Cho La Pass with Ama Dablam on left and Arakam Tse on right side, Solukhumbu District, Nepal, Himalayas, Asia

King Penguins (Aptenodytes patagonicus) on the plain of Right Whale Bay, South Georgia Island, Antarctic, Polar Regions

King Penguin colony (Aptenodytes patagonicus), Right Whale Bay, South Georgia Island, Antarctic, Polar Regions

King Penguins (Aptenodytes patagonicus), Right Whale Bay, South Georgia Island, Antarctic, Polar Regions

King Penguins (Aptenodytes patagonicus) crossing a stream, Right Whale Bay, South Georgia Island, Antarctic, Polar Regions

At left Hazroti Imom Friday Mosque and at right Moyie Mubarek Library Museum, Tashkent, Uzbekistan

New boardwalk on the right river bank, close to central market, new National Library on the left, Daugava river, Riga, Latvia

Walking routes signpost in Dutch, some suitable for wheelchairs, Westhove Palace near Domburg, Walcheren, Zeeland, Netherlands, Europe

African Elephants (Loxodonta africana), breeding herd, roaming, top right a Hippopotamus (Hippopotamus amphibius), aerial view, Okavango Delta, Botswana, Africa

Two Masai giraffe (Giraffa camelopardalis tippelskirchii) walking across grassy plain, Serengeti, Tanzania

A lion cub (Panthera leo) walks through long grass towards the camera. It is lifting its right paw and staring intently, Serengeti National Park; Mara Region, Tanzania

Female Cheetah (Acinonyx jubatus) drags freshly killed Thomson's Gazelle (Eudorcas thomsonii) in the Ndutu area of the Ngorongoro Conservation Area on the Serengeti Plains, Tanzania

A Rhinoceros Is Charging From Right To Left Over The Savannah With Its Head Down, Surrounded By A Grassy Plain, Herd Of Wildebeest In The Background, Nyabushozi, Western Region, Uganda

Guanaco (Lama guanicoe) walking from right to left against blue sky in the desert; Atacama, Chile

A backpacker crosses the exotic landscape of the ash and pumice-covered Valley of Ten Thousand Smokes in Katmai National Park, with Mt. Katmai (left), Trident Volcano (right), and the Knife Creek Glaciers looming in the distance; Alaska, United States of

Looking up Levers Street from Kaila Road with Imperial Hawaii Resort at right, Waikiki, Honolulu, Oahu, Hawaii, United States of America

View North into Seaside Avenue from South side of Kalakaua Avenue with Waikiki Busines Plaza street level on the right in Waikiki, Honolulu, Oahu, Hawaii, United States of America