When the new $60 million Modern Art Museum of Fort Worth opens this weekend, it will be the second-largest modern art museum in the US. “This museum has changed identities, names and directors more times than most people can count. Its meteoric rise of late is all the more remarkable given its checkered history and inauspicious beginnings. A museum that started as an adjunct to the public library, with volunteers footing the bills and guiding its fate, now stands poised to be one of the most influential institutions of its type.”