Dunno if its been mentioned but the wife and I have been watching a Spanish series called
Gran Hotel. It's in spanish with english subtitles. The best way I can describe it is that it's like Downton Abbey, but imagine if interesting things and plotlines actually occured on Downton Abbey.
It takes place in a Spanish resort hotel in the early 1900s and like Downton Abbey, the plot primarily involves the upper class hotel owners and the lower class hotel maids and waiters. It has everything from serial killers to people with secret identities to family betrayals, and an Hercules Poirot inspired investigator trying to figure it all out.
Seasons 1 and 2 are on Netflix and season 3 is available "elsewhere" to be added to netflix later this year. We're nearing the end of season 3 and the story is pretty epic.