A cold, damp wind hits you in the face as the door opens.

[hider=The corpse of a city...][img=http://i.imgur.com/VnexROf.png][/hider]
Jesus, it smells like a sewer in here. It... also looks like a sewer in here. That's because it is a sewer. The room is surround by concrete walls, and sky above is a sickly gray. The water below is dark green and cloudy, and various... things... float around in the sludge.

It's eerily quiet. Other than the wind blowing around the complex, there are absolutely no other ambient noises. There are no birds chirping, no bugs buzzing, no rats scurrying. The water isn't flowing at all.

The entire place feels like every single life form in this world disappeared at the same time.