TOPSHOTS An Egyptian worker sprays water towards his colleague during the demolition of the headquarters of the once-dominant party of ex-president Hosni Mubarak that was torched during the 2011 uprising that toppled him, on May 31, 2015 in the capital, Cairo. Angry protesters demanding the ouster of Mubarak's regime ransacked and set fire to the headquarters of his National Democratic Party (NDP), a four-storey building located on the Nile near Cairo's iconic Tahrir Square, epicentre of the uprising. AFP PHOTO / MOHAMED EL-SHAHED