November, 2015. What do you do with 6000 km of unused railway lines? At the beginning of the 20th century, Spain had ambitious plans to connect its rural communities via rail. With the economic crisis brought on by WWI and then the Spanish Civil War, these plans fell apart. Many of the railway lines, in various states of completion, were never used. They lay neglected until the early ’90s when Spain introduced the Via Verde Program—transforming unused railway lines into biking/walking greenways. There are now over 2000 km of Via Verdes across rural Spain, with over 100 different routes. We had the pleasure of cycling the 36.5 km Via Verde de la Sierra, which links the villages of Olvera and Puerto Serrano in southern Spain’s Andalucia region. It is the crowning jewel of the Via Verdes and has won numerous awards for best greenway in Europe.