Join John Casey for a virtual tour of the history and architecture of the 200 year old chq building. John Casey of CORA Consulting Engineers has been the Structural Engineer responsible for the CHQ Building from 1999 when the first large scale renovation was undertaken since it was constructed in 1820. John has been involved again more recently with the integration of EPIC The Irish Emigration Museum into the basement vaults and the Dogpatch Labs coworking offices throughout the building. John has an intimate knowledge of the original construction, history, alterations and renovations of the building over its lifetime.