Never before has “All the world’s a stage, and all the men and women merely players” been a more fitting opening gambit. This sprawling wartime spectacle knew few bounds as it marched across York’s cobbled streets for an evening that produced watery eyes, open mouths and, admittedly, tired legs.

Site-specific theatre is hard – where to put the audience, can they stand for nearly two hours, how do we enable them to see/hear, most importantly, what is the purpose of the site and how is it to be used? Verbatim theatre, too, is hard – how to shape a narrative, how to develop characters. Put the two genres together, and what have you got? A well-intentioned, rather unfocused mess, to be honest.

You could say that the Titanic has been done to death, and that any new show would really need to say something different, something so far unknown, unearth a new angle, find new facts. To some extent, Treasured does that. Who’s ever heard of Mouser, the Titanic cat, who is supposed to have carried all six of her new-born kittens off the ship in Southampton?  Allegedly her feline prescience sensed impending doom.

National Theatre Wales like the word “us”. It was there in Michael Sheen’s Passion of Port Talbot – its film adaptation was called The Gospel of Us – and it is here, prominently, in the multi-layered title of Mike Pearson and Mike Brookes’ latest site-specific offering. The team that brought Aeschylus’ The Persians to the Brecon Beacons military range have now commandeered a disused aircraft hangar a few miles outside Cardiff to stage an experimental version of Shakespeare’s Coriolanus, sprinkled with Bertolt Brecht’s unfinished version Coriolan.

Empty vessels make the most noise. That pithy old aphorism floated into my head a scant few minutes into the much-heralded new work by the undoubtedly talented, but here way off-beam, Hofesh Shechter. And again, a few minutes later. And again, and again, as something like 200 drummers filled the stage and bashed away in earnest polyrhythmy. At the end of the 80 minutes my watch was worn with checking.

It’s a shame that Joseph Steele’s BIBLE didn’t come a week later. Halloween would have been a far better backdrop to the haphazard heathenism that the evening entailed.

Ten years on from 9/11 and the polyphony of reactions will not, and should not, be stilled. Creative artists have had to tread carefully in what they amass, and how they present it.

A few days visiting the Edinburgh Art Festival and the city itself becomes the encircling gallery. Under great canvases of lowering grey cloud, plunging up and down the different levels of the Old Town and the New, things unfold against the intense hues of emerald-green spaces, the coppery contrast of the beeches, the cold hardness of the towering walls of stone and the eddying flow of the crowds. Within this frame is the opportunity to see a wide diversity of exhibitions and events in almost 50 museums, non-profit, commercial and artist-run spaces, plus specially commissioned site-specific works.

This warm-hearted production of E Nesbit’s most famous novel premiered to glowing reviews at its site-specific venue last summer.