The job allows Millinger to draw on his experience in the arts: He's been general counsel and president of the Prince Music Theater and was a member of the board of the Philadelphia Dance Affiliates/Dance Celebration. Immersed for decades in the cultural scene in Philadelphia, where he still lives with his partner, Gary Clinton, associate dean for Student Affairs at the Law School, Millinger is now working with the foundation on establishing a major cultural district in Abu Dhabi, which will include a branch of the Guggenheim as one of its cornerstones.

The Guggenheim Foundation owns and operates three museums: The Guggenheim Museum in New York City, the Peggy Guggenheim Collection in Venice, Italy; and the Guggenheim Hermitage Museum in Las Vegas. It also provides programming and management for the Guggenheim Museum Bilbao in Spain and the Deutsche Guggenheim in Berlin.