Greece is 6.5 times larger than Massachusetts (USA).
Area: 131,957 km2 World Factbook
Population: 10,775,557 (July 2014) World Factbook
Greece, officially the Hellenic Republic and known since ancient times as Hellas, is a country in Southern Europe. According to the 2011 census, Greece's population is around 11 million. Athens is the nation's capital and largest city. Wikipedia
Massachusetts, officially the Commonwealth of Massachusetts, is a state in the New England region of the northeastern United States. It is bordered by Rhode Island and Connecticut to the south, New York to the west, and Vermont and New Hampshire to the north; at its east lies the Atlantic Ocean. Wikipedia