Waterworks

I went up to a rooftop for a look around.

You can see those apartments that everyone's always reminding me about.

This is what I'm here for.

Not entirely sure its purpose. Filtration?

Regular Seoul.

Parked in front.

Heating.

More butt goats.

Underneath.

On top.

Security guard shack, now empty.

An air quality monitoring station.

Tools.

This'll probably explain everything.