Question: The Church of St. Martin in Landshut is a medieval church in the German city located in the state of Bavaria, it is also the 2nd tallest brick structure in the world (after Anaconda Smelter Stack), made without steel supports, the Anaconda Smelter Stack is a brick smoke stack, once part of the smelter of which organization, at Anaconda, Montana in the United States?
Sentence (from "St. Martin's Church, Landshut"): This Brick Gothic landmark is the tallest church in Bavaria, and the tallest brick building as well as church in the world.
Relevant evidence: No