Cover art
The photograph on the album cover was taken by long-time U2 photographer Anton Corbijn in the Roissy Hall 2F of the Charles de Gaulle Airport in Paris, France.[11] Unlike the busy colour sleeves of the band's 1990s records, the cover is a single monochrome image of the band in the airport's departure terminal. The designers describe the look they created as "grown up". Early versions of the cover released to the press show a departure sign that reads "F21-36", however, this was changed to J33-3 in reference to the Bible verse Jeremiah 33:3, "Call unto me and I will answer thee great and mighty things which thou knowest not." Bono referred to it as "God's phone number"[11] The lyric "3:33 when the numbers fell off the clock face" appears on the song "Unknown Caller" from the group's 2009 album No Line on the Horizon.