Shortly after the Treasury the area called the Outer Siq widens, with on the south side a theatre and on both sides the facades of Nabataean tombs, some more important than others. Here I try and group (some may come later) pictures from there.
I gathered from several descriptions that it is mainly the south side that is called the Street of the Facades (with Tomb 67, its neighbours and next the Theatre Tombs), but the part across the road is also often called so. Some people include the Royal Tombs or Kings' Tombs, I think that is wrong.