Quick facts about Athens

Currency: Euro (EUR)
Language: Greek
Population: ≈ 664,000 (Athens City); ≈ 3.1 million (Athens Metropolitan Area)
Climate: Mediterranean, with hot summers and mild, wet winters
Time Zone: Eastern European Time (EET), UTC+2
Visa: Greece is part of the Schengen Area. Most EU/EEA/Swiss citizens can enter visa-free, as can visitors from the U.S., Canada, Australia, and several other countries for up to 90 days.
Transportation: Athens International Airport (ATH) serves as the main international gateway. The city has a comprehensive public transportation system, including metro, buses, and trams, making it easy to explore historical sites and neighborhoods.