Street scene in Chefchaouen (Chaouen) (Chechaouen), Rif Region, Morocco, Africa

Three girls in conical hats cycling on rural road north of Hanoi, Bac Thai Province, Vietnam, Indochina, Southeast Asia, Asia

Cycle rickshaw, Chiang Mai, Thailand, Southeast Asia, Asia

Neon lights at dusk, Asahikawa, Hokkaido, Japan, Asia

Olympiapark, Munich (Munchen), Bavaria, Germany, Europe

Cyclists and walker on the Camino de Santiago Pilgrim's route to Santiago de Compostela in Galicia, Spain

Cyclists on touring holiday near Montalcino, Val D'Orcia, Tuscany, Italy

Cardiff Bay Barrage, Cardiff, Wales, UK, Europe

Girl riding bicycle pulling friends on skateboard

Boy on bicycle pulling friends on skateboards

Father watching daughter and son riding bicycles

Father watching daughter and son riding bicycles

Caucasian couple posing on lawn with baby daughter

Tahitian man with her daughter carrying baguettes while riding a bicycle on the island of Tahiti, French Polynesia, Tahiti Nui, Society Islands, French Polynesia, South Pacific.

A vendor sells mangosteen fruit from a three-wheeled bike cart on the street in Guilin, China.

A vendor sells mangosteen fruit from a three-wheeled bike cart on the street in Guilin, China.

Three male mountain bikers on the way, Dolomites, Italy

stockmen on motorbikes in dust, Quinyambie Station, South Australia, Australia

Mountain bike tour, MTB, in Pillersee valley, St. Ulrich am Pillersee, Tirol, Austria, Europe

Three people riding mountain bikes at Bussalp (1800 m), v Grindelwald, Bernese Oberland (highlands), Canton of Bern, Switzerland

Three people on a mountain bike tour near Blaser, near Steinach am Brenner, Wipptal, Tyrol, Austria

Three people on a mountain bike tour near Blaser, near Steinach am Brenner, Wipptal, Tyrol, Austria

Three local men with transport cycles, Oxkutzca Market, Yucatan, Mexico

Three cyclists, Bavaria, Germany

Mountainbikers at the edge of a dangerous cliff, Deathroad, Yungas, La Paz, Bolivia, South America

Three cyclists on fatbikes backlit at sunset, Plaat Beach, Nature Reserve, De Kelders, Gansbaai, Western Cape, South Africa, Africa

Mountainbikers at the edge of a dangerous cliff, Deathroad, Yungas, La Paz, Bolivia, South America

Two llamas and a bicycle, Huilahuila, Peru, South America, Latin America

Mountainbikers at the edge of a dangerous cliff, Deathroad, Yungas, La Paz, Bolivia, South America

Mountainbikers at the edge of a dangerous cliff, Deathroad, Yungas, La Paz, Bolivia, South America

Mountain bikers in Love Valley, Guevercinlik Valley, Goereme, Cappadocia, Turkey

Mountain bikers cycling in Goereme, Cappadocia, Turkey

Mountain bikers cycling in Goereme, Cappadocia, Turkey

Men and boys on bikes ride past a towering, ancient minaret, outside of Ghazni, Afghanistan, October 1, 2002. Made of brick decorated with Kufic and Naksh Script and floral motifs, the minaret dates back to the early 12th century and was built by Sultan Masud III of the Ghaznavid Dynasty, who ruled over an empire encompassing much of Afghanistan, Northern India, Persia and Central Asia. The minaret was once three times as tall as its current 70 feet, and is thought to have been part of a large mosque complex. Now an important truck stop on the road to Kandahar, Ghazni, located on the Lora River at the elevation of 2,225 meters, is the capital of Ghazni province and is a market for sheep, wool, camel hair cloth, corn, and fruit-it also continues to be a haven for Taliban insurgents.

Men on bikes ride past an ancient brick minaret toward the old walls and citadel of the town of Ghazni, Afghanistan, October 1, 2002. Made of brick decorated with Kufic and Naksh Script and floral motifs, the minaret dates back to the early 12th century and was built by Sultan Masud III of the Ghaznavid Dynasty, who ruled over an empire encompassing much of Afghanistan, Northern India, Persia and Central Asia. The minaret was once three times as tall as its current 70 feet, and is thought to have been part of a large mosque complex. Now an important truck stop on the road to Kandahar, Ghazni, located on the Lora River at the elevation of 2,225 meters, is the capital of Ghazni province with a population of 35,900, and is a market for sheep, wool, camel hair cloth, corn, and fruit.

Three young men hold their bikes over their heads on the Amasa Back Trail, Moab, UT.

Three young women riding their bicycles on a trail along the water's edge, Anchorage, Alaska, United States of America

Three young women on their bicycles on a trail at sunrise, Anchorage, Alaska, United States of America

Three adult cyclists on a path, Tarifa cadiz andalusia spain