Around half a million bikes are sold in Denmark each year, and nine out of ten Danes own one. It's the ideal location for high-tech smart bike-sharing scheme Gobike to debut. But what will it mean for locals? And can it provide an effective solution to travel in other cities?

Many claim that cycling makes people happier and healthier and cities greener, and a study in New Zealand shows that for every dollar spent on building separated bike lanes, cities could save as much as $24 thanks to lower healthcare costs, less pollution and traffic.

It was the early '80s when Copenhagen first set out to become a haven for cyclists, and in the decades since more than 200 miles of cycle lane have been built in the city. The latest addition – named the Cykelslangen – adds just 721 feet, but it's one of the most exciting.

France’s transport ministry has announced a new initiative to get people out of their cars and onto their bikes. Employers have pledged to pay their staff 25 cents for every kilometre spent commuting on two wheels. But do financial incentives actually change behaviour?