This picture shows proably a hall of asembly
that was made for people to sit in neat rows.

This picture shows the bath's

drain. It is used to drain off water

from the bath.

This picture shows the great bath

and the granary. It was first identified drain.

as a hot air bath but after that they

found out it was actually a state granary.

source: http://www.harappa.com/har/har0.html.