Heroin, we now know, is hugely harmful and addictive – which makes it all the more alarming that not so long ago it was marketed as an everyday medicine for both adults and children. Find other dangerous drugs scarily once promoted as healthy pick-you-ups in this week’s link round-up. Also here, a look at how folks in the 19th century wooed the prospective objects of their affections – by using rather creepy calling cards, of course.
Light relief, meanwhile, comes in the form of a stunning slice of architecture porn, not to mention some cringe-worthy fast-food training videos that are more hilarious than informative. And talking of cheese, there’s also a host of B-movies out there that are even more ridiculous and worth your time than the Sharknado series. Seriously.