Those who criticized the aesthetics stated tampering with the Louvre's grand old French Renaissance building was "sacrilegious," and the pyramid was an outdated intrusion of an Egyptian death emblem in the center of Paris. Meanwhile, political opponents dubbed the construction Pharaoh Francois' Pyramid. Although the Egyptian government had no role in its design or financing, they did grant permission for its use as a monument to France's friendship with Egypt. In response to these criticisms, Mitterand said that the pyramid would be an icon for peace which would serve as a reminder of France's commitment to international cooperation. The pyramid was also seen as a statement of independence from Egypt, since the French government refused to pay for the entire project. However, the two countries did agree to share the cost of maintenance and operations of the pyramid. In addition, the pyramid has been praised for its contribution to the preservation of Egyptian artifacts. Before the construction of the pyramid, many of Egypt's ancient treasures were being destroyed by the humidity of its climate and the rough handling of tourists. The pyramid's air-conditioning system provides vital protection for these relics. Finally, some see the pyramid as a symbol of the modernization of Egypt and the French presence there. It is estimated that more than 10 million people have visited the site since it opened in 1980. In addition, the pyramid generates about $15 million per year for the Egyptian economy.