The Avalon Theatre, Portland, OR. I have some conflicting information about this theater...I have heard that it may have been built in 1913 as the Sunnyside Theatre, which would make sense if you looked at the building and understood the construction of the day. However, the sign in the photo says "A Portland Tradition Since 1925." It could be that it became the Avalon in '25, or that could be when it was built. For now, that will have to remain a mystery.