Athens was one of five cities to win the Bloomberg Philanthropies 2014 Mayors Challenge on Thursday.
The Greek capital won the 1-million-euro award for the City of Athens’s Synathina online platform connecting the local authority with civil society.
Barcelona, Kirklees, Stockholm and Warsaw were the other winners.
The five cities were given a total of 9 million euros in funding and implementation support.
Barcelona will receive 5 million of this as the grand prize winner.