Classical archaeology comprises of the study of Greek and Roman cultures and the result is a mix of textual, visual, and material evidence. Underwater archaeology as a discipline has increased the understanding of cargoes, construction, and size of Greco-Roman ships. The raw archaeology data is helpful in drawing conclusions about maritime trade and economy. Maritime archaeological evidence for the ancient art trade first came to light in the early twentieth century. New methods to extract new information from old objects and shipwreck archaeology are being continuously developed. At the same time, the unpublished data stored in the museums are also informative. A challenge for maritime archaeologists is to balance between text, image, and artifact to get a maritime illustration.