Embedded in the architecture of a new Lidl store in Dublin is a glass floor that allows shoppers to peer down into medieval history. During the supermarket’s construction, archaeologists discovered a 1,000-year-old home of Hiberno-Norse Dubliners, who were ancestors to the Vikings, in addition to a 13th-century wine jug and the below-stage trap of the former Aungier Street Theatre. Rather than excavate the items and build on top of the site, covering the ruins, the store installed glass flooring that provides shoppers with a literal window into local history. (via Twisted Sifter)
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