Millett Opera House - Credit: Wikimedia Commons
The Millett Opera House, home of the Austin Club, is a historic building in downtown Austin, Texas. Built in 1878 by local lumber seller Charles Millett on one of his lots, the house was one of the largest performance spaces in Texas upon its completion. It featured 800 removable seats, 24-inch limestone walls, and the largest enclosed space in Texas.The Austin Club - History The Opera House was designed by Frederick Ruffini, an architect working throughout Texas. Read more on Wikipedia
Source: en.wikipedia.org