Watch | New stamp marks Pope’s 80th birthday

Pope Francis will celebrate a landmark birthday today. He's turning 80. In keeping with the pontiff's low-key style, no special events have been organised - but the Vatican is commemorating the milestone with a special stamp. A Spanish artist was commissioned to paint the picture used for the stamp, which also represents the Pope's homeland of Argentina. The booklet containing the four stamps is on sale for $20, and can be bought or ordered from the Vatican post office.