Tunnel Under Former State Hospital – Traverse City, MI admin July 25, 2021 Architecture / TravelBlog The majestic state hospital grounds and complex have been transformed into shops, businesses and condos. Certain buildings as well as the underground infrastructure such as these tunnels are well preserved. You Might Also Like BBC Published Picture – “Pathways” June 27, 2019 CNN Travel Photo of the Week – Sept. 2nd, 2015 September 2, 2015 Vatican Rays September 28, 2006