For more information regarding the U.S. Embassy in Greece you may visit the U.S. Embassy Athens home page or contact the Embassy directly at:

U.S Embassy Athens
91 Vas. Sophias Avenue
101 60 Athens
Greece
Tel: (30) 210-721-2951

If you would like to travel to the U.S. and you need a Visa, you should contact the Consular Section at the following link: http://athens.usembassy.gov/visas.html