Artstor: Artstor covers many time periods and cultures. Searchable database of more than 300,000 digital images and associated catalogue data. Collection of images covering a broad range of world cultures in many mediums, including painting, architecture, sculpture, photography, decorative arts and design, and archaeology.
JSTOR: JSTOR is a digital library that includes multiple types and formats of searchable content. Licensed Artstor collections have been added to JSTOR.
Oxford Art Online: The database includes extensive image links. Search by era and region.
Perseus Art and Artifact Browser: Perseus Art and Archaeology Artifact database is a tool for finding images, general information, and bibliography about buildings, coins, gems, sculptures, sites, and vases in Greek and Roman antiquity.