Greece, also known as Hellas or Ellas in Greek, is a republic in Europe. The country spans 50,944 square miles along the southern Balkan Peninsula, and ~75% of that land is mountainous. The largest city in Greece is Athens. Although Greece’s economy once relied more on agriculture, tourism and manufacturing are now vital  contributors to revenue. In particular, Greece produces textiles, chemicals, plastic, rubber, and refined petroleum. Its population in 2001 was estimated to be ~10,706,290.