Official Name: Hellenic Republic

Passport/Visa Requirements: US citizens need only a passport for stays up to 90 days.

Capital: Athens

Population: 10,737,428

Languages: Greek

Predominant Religion: Greek Orthodox

Time Zone: 2 hours ahead of Greenwich Mean Time, 7 hours ahead of Eastern Standard Time.

Voltage requirements: 220 volts

Phone codes: 30, country, 210, Athens city code