WHERE AM I?

Just woke up in what seems to be an abandoned building, good thing I have my camera with me.

[lostbeneathrealms]

-It seems that there's no power at all, the door is locked and even though i tried to contact everyone I could, no one is getting my calls

[lostbeneathrealms]

just woke up and my head hurts, I still can't get used to the dark but from the smell and the tiles I guess I'm trapped in a bathroom, phones' battery is almost dead and I don't want to abuse the screen's brightness, thank goodness nothing happened to my camera