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. Share this: You Might Also Like Vatican Rays September 28, 2006 Hidden Temple – Chiang Mai, Thailand September 19, 2017 Shanghai Tower September 26, 2015