Winnats Pass, Derbyshire, England

Winnats Pass is in the High Peak area of the English county of Derbyshire. It lies to the west of the village of Castleton, in the National Trust's High Peak Estate. The road winds through a cleft, surrounded by towering limestone pinnacles. The pass was once thought to have originated as a giant collapsed cavern; however, a more recent explanation is that it was a ravine between the coral reefs that originally formed the limestone.

The permanent closure of the main A625 road at Mam Tor in 1979 due to subsidence has resulted in Winnats Pass being heavily used by road traffic. However, the narrowness of the road and its 20% (1 in 5) gradient has caused it to be closed to buses, coaches and vehicles over 7.5 tonnes in weight. The road regularly features in the Tour of the Peak cycle race each autumn.

Road through The Quirang, Isle of Skye, Scotland

Lake Stryn, Norway

Inishowen, Ireland

Photograph by Dave Johnston

Storm Clouds, South Dakota

Thunderstorm Clouds, Colorado

Owyhee River, Idaho

Dettifoss Waterfall, Iceland

Europe's mightiest waterfall rushes over rocks in Vatnajökull National Park, a place full of superlatives. It's Europe's largest national park (at more than 4,500 square miles) and it's home to Vatnajökull, Europe's largest glacier. The waterfall drops nearly 150 feet and is more than 300 feet wide.

Hohenzollern Castle, Germany

Boasting the towers and turrets of a storybook setting, neo-Gothic Hohenzollern Castle overlooks the Swabian Alb in southwestern Germany. Built over a medieval castle complex, Hohenzollern has served as a fortress, a royal ancestral seat, and—today—a historical attraction with daily guided tours.

Horses, Mongolian Steppe

Snaefellsnes, Peninsula

Peak District, England

Western Ghats, India

The Western Ghats constitute a mountain range along the western side of India. It is a UNESCO World Heritage Site and is one of the eight hotspots of biological diversity in the world. This range runs north to south along the western edge of the Deccan Plateau, and separates the plateau from a narrow coastal plain along the Arabian Sea. These hills cover 160,000 km2 and form the catchment area for complex riverine drainage systems. The area has over 5,000 species of flowering plants, 139 mammal species, 508 bird species and 179 amphibian species; it is likely that many undiscovered species live in the Western Ghats. At least 325 globally threatened species are in the Western Ghats.

Heart River, North Dakota, United States

The Heart River is a tributary of the Missouri River, approximately 180 mi (290 km) long, in western North Dakota in the United States.

Cycle rickshaw...