Flower stall on street by Brandenburg Gate, Potsdam, Germany, Europe

A public bike hire scheme in Seville, Andalucia, Spain, Europe

Bicycles parked outside a railway station on the outskirts of Copenhagen in Denmark, Scandinavia, Europe

Young female cyclist having a break to enjoy the ambiance, Tannheimer Tal, Tyrol, Austria

Two downhill mountain bikers, Morzine, Haute-Savoie, France

Mountain biker standing on ramp, Oberammergau, Bavaria, Germany

Young man holding a mountain bike, Oberammergau, Bavaria, Germany

Mountain biker stands with MTB next to a wooden bench and looks into the wide light-flooded mountain landscape, Patscherkofel, Patsch, Tyrol, Austria, Europe

Ducati Multistrada motorcycles in a row

Kawasaki Twister

Young man standing outside and renting a bike, Freiburg, Baden-Wuerttemberg, Germany, Europe

Mid section man standing near bicycle

BMW R1150 GS

Kawasaki VN 900

Yamaha Virago

Decorated bicycle rickshaws, Sonargaon, Bangladesh, Asia

Villo rental bikes at the Midi train station, Brussels, Belgium, Europe

Bicycle, bicycle stand, stainless steel bicycle park, casts shadow, Aalborg, Jutland, Denmark, Europe

Cyclist memorial, Arvika, Vaermland, Sweden, Europe

Rental bikes, bicycles, Santander, Cantabria, Spain, Europe

Villo rental bikes at the Midi train station, Brussels, Belgium, Europe

Lighthouse and a bicycle, Westkapelle, Zeeland, Holland, Netherlands, Europe

ROCKPORT, TEXAS, USA. A woman walks her bike in front of a bait stand in a small coastal town.

Charred remains of homes which were burned to the ground stand in a neighborhood of Rancho Bernardo in San Diego during the Southern California wildfires of 2007. More than a dozen homes were completely lost in the small neighborhood there.

Shadow of a cyclist and bike on a dirt path in a vast open landscape in Caprock Canyons State Park and Trailways, Texas, USA, Texas, United States of America

Hawaii, Oahu, Kailua Beach, Teenage girl with surboard and bike.