An aerial view from a helicopter shows the Olympic Park under construction, the Main Media Center building and the Adler thermal electric power station in the Adler district of the Black Sea resort city of Sochi

An aerial view from a helicopter shows (R, top-bottom) the Olympic Park under construction, the Main Media Center building and the Adler thermal electric power station in the Adler district of the Black Sea resort city of Sochi, December 23, 2013. Sochi will host the 2014 Winter Olympic Games in February. Picture taken December 23, 2013. REUTERS/Maxim Shemetov (RUSSIA — Tags: CITYSCAPE BUSINESS CONSTRUCTION SPORT OLYMPICS) — RTX16XB5