A view of the abandoned city of Pripyat, near the Chernobyl nuclear power plant March 31, 2011. Belarus, Ukraine and Russia will mark the 25th anniversary of the nuclear reactor explosion in Chernobyl, the place where the world's worst civil nuclear accident took place, on April 26. REUTERS/Gleb Garanich (UKRAINE - Tags: DISASTER ENERGY ANNIVERSARY ENVIRONMENT BUSINESS CITYSCAPE) - RTR2KNNU