>>34818964It's not a building, it's an undersea temple.
And iirc it washes through the forcefield keeping the water out once everything starts leaking.
Seriously, watch the movie. Aside from the shit cgi sub it's gorgeous and the soundtrack is beautiful. So much so that they reused it constantly in the DP series.
I think the pirate was planning to use it as an escape pod? That explains why it was there in the first place.
