In Russia, many former train cars are recycled into Orthodox places of worship. After the bar car and sleeper car, discover the church car. dRMM the agency of the architects imagined the "Sliding House", a house provided with a second mobile skin, to cover or uncover the living spaces and outdoor spaces at leisure. Made of paper and cardboard recycled, the "Universal World House" is an emergency housing solution designed for the poor. A green building, easy to implement and inexpensive. In Germany, the Kalhöfer-Korschildgen architectural firm shows us how to transform a roof terrace into a pleasant furnished terrace in the blink of an eye. A light and playful intervention. How to take advantage of our gabled walls, vertical blind concrete that often punctuate our urban landscapes? From the Netherlands to Ukraine, discover two original solutions. The Boxhome is a prototype compact house designed by Rintala Eggertsson for the Galerie Rom in Oslo. An inspiring study with amazing interior spaces. The Japanese company Muji sells its objects, furniture and clothing clean design around the world. Designed by architect Kengo Kuma, two models of prefab houses now enrich the catalog of the brand. In New Zealand, north of Auckland, just completed the construction of the Yellow Treehouse Restaurant, an establishment built in a redwood and suspended 10 meters above ground.