I am not sure if the creators of Attack on Titan intended the inference to the religious Sheep's Gate: a place where the people society didn't want were abandoned to. However considering the overall quality of this series, I wouldn't put it passed them. Especially as it works perfectly with the story being told.

This is one of the best television series I have ever seen. Not just anime, but of ALL of television. This is now the show I would rate closest to perfection, that I almost was considering giving it a 10.

It's amazing. It has Babylon 5 levels of earlier shown moments in the series becoming focal later on. It - is - AMAZING! (don't forget to watch the OVAs)

There are so many good things to say about this show. Choosing just one example. In season 1 when Eren says he's going to "kill them all", and we as the viewer are full on board with him.... Eren hasn't changed in season 4. He's still the same as in season 1 in his vindication when we were cheering him on to get his revenge.

WE as the viewers changed by that time by being aware of the entire story.

This is must see tv. Top tier.