Answer the following question: Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. German School of Athens -  The German School of Athens or Deutsche Schule Athen (GSA / DSA in Greek Γερμανική Σχολή Αθηνών ΓΣΑ or also known Dörpfeld Gymnasium) is a coeducational independent high school in Greece. The school has been in operation since 1896.
Answer:
Educational Institution