Single track road with stone barn in the Lake District National Park, Keswick, Cumbria, England,

Young Chinese woman standing on the sand dunes of the Gobi Desert while photographing the Crescent Lake with the Chinese Pagoda in Dunhuang, Silk Road, Gansu, China, Asia

Young Chinese woman taking photographs on the sand dunes of the Gobi Desert, Silk Road, Gansu, China, Asia

Hiker on a dirt track, bright rape fields and white clouds against a blue sky, near Erkertshofen, Titting, Altmühltal Nature Park, Bavaria, Germany, Europe

Sports car at the the Waldviertel car rally, Lower Austria, Europe

View from the sand dunes of the Gobi Desert to the Crescent Lake with a Chinese pagoda near Dunhuang, Silk Road, Gansu, China, Asia

Marathon runner, running shoes, ChampionChip fixed on the shoe, used to keep track of the competition times of athletes

Tire track, snow

Sports car at the the Waldviertel car rally, Lower Austria, Europe

Single track road in the highlands, Scotland, Great Britain, Europe

Sports car at the the Waldviertel car rally, Lower Austria, Europe

Rheinbahn tram Type GT8, at Derendorf, Duesseldorf, North Rhine-Westphalia, Germany, Europe

Dirt track, Altiplano, Ollague volcano, 5869 m, southern Bolivia, South America

View taken from behind of a safari guide and women travelers standing in a parked jeep talking and looking out onto the savanna with binoculars on the Gabus Game Ranch at sunrise; Otavi, Otjozondjupa, Namibia

Woman riding horse (Equus ferus caballus) on a dirt road through the bush on the savanna looking at the camera and smiling at the Gabus Game Ranch; Otavi, Otjozondjupa, Namibia

Pale-chanting Goshawk (Melierax canorus). Flying off a rainwater pool at a gravel road. Kalahari Desert, Kgalagadi Transfrontier Park, South Africa.

Southern Giraffe (Giraffa camelopardalis giraffa) on a track and white dust, Etosha National Park, Namibia