to the islands of Monte Isola and San Paolo. The floating walkways were made of around 200,000 polyethene cubes covered with of bright yellow fabric: of piers moved on the water; another of golden fabric continued along the pedestrian streets in Sulzano and Peschiera Maraglio. After the exhibition, all components were to be removed and recycled. The installation was facilitated by the Beretta family, owners of the oldest active manufacturer of firearm components in the world and the primary sidearm supplier of the U.S. Army. The Beretta family owns the island of San Paolo, which was surrounded by Floating Piers walkways. The work was a success with the Italian public and critics as well. The London Mastaba The London Mastaba was a temporary floating installation exhibited from June to September 2018 on The Serpentine in London. The installation consisted of 7,506 oil barrels, in the shape of a mastaba, a form of an early bench, as well as a style of tomb, in use in ancient Mesopotamia, with a flat roof and inward sloping sides. It sat on a floating platform of high-density polyethene, held in place by 32 anchors. It was in height and weighed . The vertical ends were painted in a mosaic of red, blue and mauve, whilst the sloping sides were in red with bands of white. Simultaneously with the display of The London Mastaba, the nearby Serpentine Gallery presented an exhibition of the artists' work, entitled Christo and Jeanne-Claude: Barrels and The Mastaba 1958–2018. The exhibition comprised sculptures, drawings, collages, scale-models and photographs from the last 60 years of the artists' work. Another Mastaba of over 400,000 oil barrels is intended to be built at Al Gharbia, from the city Abu Dhabi. Over the River Christo and Jeanne-Claude announced plans for a future project, titled Over The River, to be constructed on the Arkansas River between Salida, Colorado, and Cañon City, Colorado, on the eastern slope of the Rocky mountains. Plans for the project call for horizontally suspending of reflective, translucent fabric panels high above the water, on steel cables anchored into the river's banks. Project plans called for its installation for two weeks during the summer of 2015, at the earliest, and for the river to remain open to recreation during the installation. Reaction among area residents was intense, with supporters hoping for a tourist boom and opponents fearing that the project would ruin