In late 2007, Prince had a retrospective at the Solomon R. Guggenheim Museum, a comprehensive show hung in chronological order along the upward spiraling walls. The show continued onto the Walker Art Center in Minneapolis. Maria Morris Hamburg, the curator of photography at the New York Metropolitan Museum of Art, asserted, "He is absolutely essential to what's going on today, he figured out before anyone else—and in a very precocious manner—how thoroughly pervasive the media is. It's not just an aspect of our lives, but the dominant aspect of our lives."