From the S-Bahn train station "Universität" to the IGM
Upon leaving the train move to the exit "Universitätszentrum".
Take any of the escalators going up.
Turn left, walking towards the university library (Universtitäts-Bibliothek).
Move past the library towards the LBBW Bank and some telephon booths.
Cross under the building and walk towards the bridge.
Cross the first bridge, then turn left and cross the second bridge. Move past the "Internationales Zentrum" on the left.
The IGM is the white building with green window frames on the after about 100m on the right, slightly set back.