COLUMBIA, Md. (AP) – The roof of a Maryland outdoor concert venue has collapsed, possibly because of strong winds. The Merriweather Post Pavilion tweeted that the roof collapsed about 2:30 a.m. Saturday. The pavilion roof of the Columbia venue was slowly being lifted 20 feet over several months as part of a five-year renovation project. It was near its final position, where it would be permanently attached, when it collapsed.