Are Walls Maria/Rose/Sina the only Wall community in the world?


I was watching _Attack on Titan_ and was wondering if this walled-off part of
the land is the only one in existence?

Like, if people were ever to go out past Wall Maria into the rest of the
world, would they come across other Humans inside other walled-off
communities?

Or is the one in the series the only one on the entire planet?




# Updated answer

I have not been following _Attack on Titan_ past the first season of the
anime, but since I currently can't delete my answer since it's been accepted,
I'll provide something based on what I've gleaned from the Wiki.

From the page about the [Walls](http://attackontitan.wikia.com/wiki/Walls), it
appears that at present, there is no knowledge of any other walled community.
However, when Eren finally returns to [his father's
basement](http://attackontitan.wikia.com/wiki/Grisha_Yeager%27s_basement), he
discovers that humanity has not actually been wiped out. I'm not sure if this
development was entirely predictable. Early on, the story of a quick
construction of massive walls while humanity was under attack was already very
suspicious, but I was not invested enough to think much about it. (My hunch at
the time was also more of something to the effect of, "a conspiracy destroyed
most of humanity.")

# Old answer, based on the first season of the anime

In some of the episode openings (particularly in the first few episodes of
_Attack on Titan_ ), it's stated that:

> Over a hundred years ago, humanity suddenly found itself faced with a new
> predator. They were more powerful than humans. Humanity was immediately
> pushed to the brink of extinction. The survivors built three walls: Maria,
> Rose, and Sina.

Without any further qualification of the statement, it's pretty much implied
here (and elsewhere) that the walls contain all that's left of humanity. This
sense of there having been huge losses to such an extent - to the point where
entire cultures probably have been obliterated - are confirmed somewhat by
things like when Mikasa's kidnappers describe her and her mother as the last
of the Asians.

There're probably some more explicit statements of this elsewhere, but it's
been a while since I saw _Attack on Titan_ , and this was the first place that
came to mind that stated something of this sort.

If it matters to anybody, I'm taking the quote here from the Crunchyroll sub.




# Updated answer

I have not been following _Attack on Titan_ past the first season of the
anime, but since I currently can't delete my answer since it's been accepted,
I'll provide something based on what I've gleaned from the Wiki.

From the page about the [Walls](http://attackontitan.wikia.com/wiki/Walls), it
appears that at present, there is no knowledge of any other walled community.
However, when Eren finally returns to [his father's
basement](http://attackontitan.wikia.com/wiki/Grisha_Yeager%27s_basement), he
discovers that humanity has not actually been wiped out. I'm not sure if this
development was entirely predictable. Early on, the story of a quick
construction of massive walls while humanity was under attack was already very
suspicious, but I was not invested enough to think much about it. (My hunch at
the time was also more of something to the effect of, "a conspiracy destroyed
most of humanity.")

# Old answer, based on the first season of the anime

In some of the episode openings (particularly in the first few episodes of
_Attack on Titan_ ), it's stated that:

> Over a hundred years ago, humanity suddenly found itself faced with a new
> predator. They were more powerful than humans. Humanity was immediately
> pushed to the brink of extinction. The survivors built three walls: Maria,
> Rose, and Sina.

Without any further qualification of the statement, it's pretty much implied
here (and elsewhere) that the walls contain all that's left of humanity. This
sense of there having been huge losses to such an extent - to the point where
entire cultures probably have been obliterated - are confirmed somewhat by
things like when Mikasa's kidnappers describe her and her mother as the last
of the Asians.

There're probably some more explicit statements of this elsewhere, but it's
been a while since I saw _Attack on Titan_ , and this was the first place that
came to mind that stated something of this sort.

If it matters to anybody, I'm taking the quote here from the Crunchyroll sub.

