 Gothic rib vaults covered the nave, and pointed arches were commonly used for the arcades, windows, doorways, in the tracery, and especially in the later Gothic styles decorating the façades.They were also sometimes used for more practical purposes, such as to bring transverse vaults to the same height as diagonal vaults, as in the nave and aisles of Durham Cathedral, built in 1093.The earliest Gothic pointed arches were lancet lights or lancet windows, narrow windows terminating in a lancet arch, an arch with a radius longer than their breadth and resembling the blade of a lancet.