Time for the solution to photo Number 5 and to give you Where is This photo Number 6!
First, the solution to Number 5:-
The steps onto the wall walk by the Red Tower (built c1490). This section of the walls is low, as is the rampart on which it stands, and has been much restored. The date of this section of the original stone wall is uncertain, possibly mid c14, restored 1857-58, 1864 and later. The internal arches supporting the wall walk along this section probably date from around 1500.
So now for Mystery Picture Number 6:-
Lounlith gate, of which no trace remains, is thought to have pierced the city wall at the site of this “modern” Bar.
The answer will be given here on our FaceBook page.