Burj Khalifa is a skyscraper in Dubai, United Arab Emirates. It is the tallest artificial structure in the world, standing at 2,722 ft. Construction began on 6 January 2004, with the exterior of the structure completed on 1 October 2009. The building officially opened on 4 January 2010. Photo: amongraf.ro/luxuryhotelsDubai
Up House from recycled cardboard boxes, even my cat wants it for itself! Just create the structure with cardboard, add some glue and toilet paper, add the colors, add all the details and voilà... a fantastic Up house!