Christo and Jeanne-Claude"s project for Abu DhabiThe Mastaba, Project for Abu Dhabi,United Arab Emirates will not only be Christo and Jeanne-Claude’s greatest achievement and only permanent large-scale work, but also the biggest sculpture in the world and one of the most significant creations in history.Conceived in 1977, The Mastaba takes its name from an ancient word describing a trapezoidal structure with a flat top, two vertical walls and two outward sloping sides.Christo and Jeanne-Claude’s Mastaba will be made from 410,000 multi-colored barrels to form a mosaic of bright sparkling colors that echoes Islamic architecture. The sculpture will be 150 meters (492 feet) high, 225 meters (738 feet) deep at the 60 degree slanted walls and 300 meters (984 feet) wide at the vertical walls.The individual colors and the positioning of the 55-gallon steel barrels were chosen by Christo and Jeanne-Claude in 1979, the year in which the artists first visited Abu Dhabi. They have...