Scotia Iron Furnace Stack - Credit: Wikimedia Commons
Scotia Iron Furnace Stack is a historic iron furnace stack located near Leasburg, Crawford County, Missouri. It was built about 1870 by the Scotia Iron Works, and is 35 feet wide at the base, and approximately 40 feet high. It is constructed of native limestone blocks. The furnace remained in operation until 1880.] (includes 2 photos from 1959 and 1961) Read more on Wikipedia
Source: en.wikipedia.org