R) A combo picture shows the Eiffel tower submerging into darkness for Earth Hour in Paris, France; picture combo shows the Mohammed Ali mosque at the Salaheddine Citadel before (top) and during Earth Hour in Cairo, Egypt; picture combo shows the landmark India Gate seen lit, top, and then in darkness as the lights are turned out for one hour to mark Earth Hour, in New Delhi, India and a combination picture shows a view of the Forbidden City before (top) and during Earth Hour (bottom) in Beijing, Saturday.
