In the million-acre Boundary Waters Canoe Area Wilderness surrounding Ely, terrain and water merge into one vast adventureland. Trip guide: http://www.midwestliving.com/travel/minnesota/ely/ely-trip-guide/
Although not an official "concert hall" this place is breath taking. You are looking at Ely Cathedral in England. It does have a little fame attached with being mentioned in novels and filmed in movies (most recent being "The King's Speech"). This place is full of history starting before the 12th century.