Olympic Tower | The Hellenic Museums Shop
The Hellenic Museums Shop that is located in the Olympic Tower Atrium, provides an inexhaustible source of Hellenic treasures. Among these are a variety of artifacts modeled faithfully on the masterpieces of Hellenic art exhibited in the museums around Greece, including figurines, sculptures, vessels, coins frescoes and ceramics.
The high quality of these artifacts is ensured by the master-craftsmen of the Greek museums, and for this reason they are often not available in mass quantity.
The shop also offers most of the Alexander S. Onassis's Public Benefit Foundation, exhibition catalogues as well as a rare selection of cultural items inspired my Greek art and tradition, such as jewelry, ornaments, books, CDs and art publications. 
You can visit the Hellenic Museum's Shop website to browse and buy the items of your taste.
The Hours of Operation are:
Monday - Friday: 10 a.m - 6 p.m.
Saturday: 11 a.m. - 5 p.m.