Spanish artist Miquel Barcelo works on his ceiling painting on the dome of Room XX at the European headquarters of the United Nations in Geneva in this undated handout photo. Barcelo was commissioned by Fundacion ONUART on the sixtieth anniversary of the Universal Decloration of Human Rights to undertake the most extensive work of art in the history of the United Nations at the venue for the Human Rights Council which will be inaugurated on November 18, 2008 by UN Secretary General Ban Ki-Moon. Barcelo used over one hundred tones of paint with pigments from all corners of the globe on the enormous 1500 metres squared dome. [Xinhua]