Minecraft Nether Fortress?

I played Minecraft with someone today, he said he built this himself, but now the question is, can you find something like that in Nether or does he build it himself?

Of course there are

Son of a brick thing with bridges and pillars?

Yes exactly

Doesn't matter it so what?

Now I've uploaded it

It's built by myself

Or a mod.

Self-built or downloaded xD

Only he could have built it… There's no such thing.