There's no such language where there is only one way to do things.
Well, not really: neither at the single statements and expressions level, nor at the "bigger picture one". But some languages push this "additional degrees of freedom" thing further than other ones: certainly Perl is a winner in this game. It's just a philosophy. Just like breeds of beer, it may fit some people and disgust others. So there's an opposite philosophy: TIOWTDI, which is of course limited in realizability since as you correctly say there can't be only one way to do it in the absolute sense of the word. But speaking of existing languages, Python is well and mostly known to outsiders for forcing indentation. And I remember clearly that at some point a specific feature of it was removed acrosse a release change because there was already another way to do the same, and that had to be the "official" one. Unfortunately I don't know it enough to give more details...