There's a connection between all these pictures, and it's especially right to have this quiz today. If you get the connection, the remaining locations may become clearer.
Giving you the connection ... all picture I took on this date last year
You must have traveled a long way that day!
I googled the scaffolders advertising in no 10 and they are based in Mitcham in south London, and say they work within the M25, so presumably that must be in London, though it doesn't really fit any other clue in the picture or what your journey must have been, as it was obviously middle of day.
I had been working in the 'burbs of Glasgow that week ... and the company I was visiting had their Christmas do in the City on the Friday evening, invited me along and I joined them. I may write more in "and also" in a few minutes. Overnight in my hotel tight by Central Station, and home on the Saturday on Virgin Train's last day via London. Early start, early afternoon as Swindon where (of course) I had the longest wait of the day for the Melksham service and straight into the Christmas fayre there even before getting home.
Pictures, in order taken
11. Glasgow Central - Bignosemac
3. Glasgow Central - Zoe
5. Preston - Stuving
8.
Crewe9. Paddington - TonyN
10.
Euston Road. ... on the 205 from Euston to Paddington
12. Euston - Phil Wakely
2. Swindon - Ellendune
4.
Swindon1. Thingley Junction - Bradshaw
6. Melksham - Bobm
7.
MelkshamEdit to add ... Yes, a red herring wasn't it? But I think the journey is obvious enough, and the bus route almost almost as much - though I can't place the junction; was it perhaps diverted off its normal route?
Oh and No. 7 is pretty easy too, isn't it?
Well - bus route identified ... and I don't recall it headed off route. The 205 no longer calls at Marylebone station but stays on Euston Road ... reseaching further ...