The Danube

 
Three pelicans fly over a lake in the Danube delta near Crisan village, 410 km (255 miles) east of Bucharest. The Danube delta, one of the most biodiverse regions in Europe, is made up of various lakes and vast marshlands, featuring over 300 species of birds and 45 freshwater fish species.    (Reuters/Radu Sigheti)