Stranded refugees walk towards the Greek-Macedonian border near Polykastro
Stranded refugees walk through a national motorway towards the Greek-Macedonian border near the Greek town of Polykastro after ignoring warnings from Greek authorities that the border is shut, as hundreds of migrants set off on the country's main north-south motorway to Idomeni border crossing February 25, 2016. REUTERS/Yannis Behrakis TPX IMAGES OF THE DAY