Visitors look at paintings by Van Gogh, "Sunflowers" and "La Berceuse (Woman Rocking a Cradle); Augustine Roulin" at Van Gogh museum in Amsterdam, Netherlands, Wednesday, May 1, 2013. The Van Gogh Museum has reopened its doors to the public after a seven-month renovation, kicking off with "Vincent At Work," an exhibition that shows Van Gogh's working methods, right down to the paints, brushes and other tools he used. (AP Photo/Vincent Jannink)

Associated Press
Visitors look at paintings by Van Gogh, "Sunflowers" and "La Berceuse (Woman Rocking a Cradle); Augustine Roulin" at Van Gogh museum in Amsterdam, Netherlands, Wednesday, May 1, 2013. The Van Gogh Museum has reopened its doors to the public after a seven-month renovation, kicking off with "Vincent At Work," an exhibition that shows Van Gogh's working methods, right down to the paints, brushes and other tools he used. (AP Photo/Vincent Jannink)
Visitors look at paintings by Van Gogh, "Sunflowers" and "La Berceuse (Woman Rocking a Cradle); Augustine Roulin" at Van Gogh museum in Amsterdam, Netherlands, Wednesday, May 1, 2013. The Van Gogh Museum has reopened its doors to the public after a seven-month renovation, kicking off with "Vincent At Work," an exhibition that shows Van Gogh's working methods, right down to the paints, brushes and other tools he used. (AP Photo/Vincent Jannink)