This day my friends and I decided to go up to North Gower Street near Euston Square to check out the building they used as a stand-in for Baker Street for the BBC TV-series "Sherlock". As we rounded the corner we could see that there was a production going on outside, and as it turned out, they were actually shooting the next season of "Sherlock".
We spent some two hours there looking at the actors acting and the production filming... and being told where not to stand as to not show up in reflections.
All in all this was a pretty cool experience.