When Miguel Pedrera became independent, he settled on a train.A sustainable house of about 30 square meters built inside an old freight wagon.“My parents thought he was crazy, but I had always wanted to live in the country, and when this opportunity presented itself I took the train,” he jokes.He now lives with his partner in a nearby house.The car was too small for two.“But if I were alone, I would come back.He lived with very little.I realized how many things we accumulate that we don't really need."What was Pedrera's house for more than a year is located on a farm north of Madrid, in Colmenar Viejo, near the sports club where he works as a tennis instructor.It is a red wagon placed on some rails.Inside, the rounded ceiling makes the room resemble a circus wagon.On one side, a double bed, a small sofa and a wood stove;to the other, the kitchen and the bathroom.One of the original sliding doors has been replaced by another glass door that makes the room very bright and allows you to enjoy the views of the mountains in the distance.Water and electricity come from a house located a few meters away.The car in which Pedrera lived was the first to be repaired by Miguel Huidobro, founder of Wagonstill, a company dedicated to the restoration and sale of old wagons.Graduated in Tourism, when he finished his degree he had the dream of building a rural accommodation and someone gave him the idea of ​​using old trains in the project.He placed the wagon on the estate where it still stands today and began its restoration.Huidobro buys Renfe wagons at auction, from individuals or abroad, restores them in two or three months and sells them for around 40,000 euros."When I started, I thought it would be a product of the crisis, but right now there is a lot of supply of modular houses at competitive prices," explains Huidobro from Portugal, where he hopes to make new acquisitions.He has sold 16 wagons since 2007 for projects as diverse as guest houses, recording studios, spas or tourist accommodation.They are sustainable homes because, as he explains, they do not affect the land."Plus, you save energy by reusing materials, and all the ones we add are eco-friendly."Also north of Madrid, in Hoyo de Manzanares, Benito Celestino had the idea of ​​restoring old railways to give them a second life.In this case, as a restaurant, El Vagón de Beni.His two cars have a capacity for 56 people, but Celestino also built a roof under which up to 60 more people can eat and which gives the complex the appearance of a small train station."We have respected the original configuration so that they are like authentic restaurant cars," he says proudly."We are the attraction of the people."Editor of the last minute section.He has developed most of his career in the newspaper.Before, he worked in the magazines El País Semanal, ICON and Buenavida.She was also an editor at La Gaceta de Salamanca.She studied journalism at the Pontifical University of Salamanca and Sciences Po, later she studied the Master's degree in journalism at EL PAÍS.Or subscribe to read without limitsSubscribe and read without limits