The German Archaeological Institute has been undertaking excavations at Olympia since the 1870s.
The German Archaeological Institute at Athens (German: Deutsches Archäologisches Institut (DAI), Abteilung Athen; Greek: Γερμανικό Αρχαιολογικό Ινστιτούτο Αθηνών) is one of the 17 foreign archaeological institutes operating in Athens, Greece.
It was founded in 1874 as the second foreign archaeological institute in Athens. Today, it is one of several specialised departments that make up the German Archaeological Institute. With an ongoing research programme, a 75,000-volume library and a large photographic archive, the DAI Athens remains a major contributor to Greek archaeology.