European citizens do not require a visa. For non-European countries please check with the nearest Greek consulate whether you need a visa or not. The currency of Greece is the Euro. Visa, MasterCard and American Express credit cards are accepted almost everywhere. The temperature during the day in March in Athens is usually between plus 15 and 25 degrees Celsius.

European Mathematical Society
Munich Re
National and Kapodistrian University
Hellenic Mathematical Society