Perhaps one of the most famous artist couples of the 20th century, Christo and Jean-Claude have become synonymous with larger-than-life fabric installations that usually involve wrapping buildings, trees, even entire cliffs with cloth. They have notoriously hung a 400-meter piece of orange fabric across a canyon in Colorado (Valley Curtain, 1972) and wrapped famous buildings like the Pont Neuf in Paris (1985) and the German Reichstag (1995). Some of their more controversial projects include installing thousands of umbrellas in California and Japan simultaneously, and filling New York’s Central Park with 7503 decorative gates (the Gates, 2005), which received mixed reactions from New Yorkers. Although the artists have stated that there is no meaning or intention behind their work other than its aesthetic impact, Christo and Jean-Claude have undertaken some of the most ambitious projects in 20th-century art history, both in terms of scale and cost not to mention temporary; all of Christo and Jean-Claude’s large-scale projects no longer exist, and were often self-funded by the artists themselves through their selling concept drawings and collages from the preparation of each project. The only Christo and Jean-Claude large-scale work that will be permanent if completed is the planned 'Mastaba', a trapezoidal structure made of over 400,000 oil barrels to be built near Abu Dhabi.