... The Ghent Altarpiece- Cathedral of St. Bavon at Ghent . ... No frames? ... In the lower-left frame you will find a hypertext menu which will take you to a certain section of the altarpiece in the index in the upper-left frame. ... The upper-left frame includes links to the B section scans, which will code to the numbers listed with the panel titles on the upper-left. (for example, click on the "Closed" in the upper-left index and it will bring up the coded B scan for the altarpiece with wings closed...