The staff in the Tourist Information Centre in Darmstadt's Luisencentre has all the answers to your questions: they are standing by with all sorts of tourist information, they can advise you about what is on offer for tourists, they can tell you about guided tours and Darmstadt arrangements.
In addition, Darmstadt souvenirs and tickets for events in Darmstadt are also on sale, as well as tickets for events in the region which have been organised by "Darmstädter".
Darmstadt Shop Luisencenter
Tel.: +49 6151 - 1345-13
Fax: +49 6151 - 1347-5858
Mon to Fri: 10 am to 6 pm
Sat: 10 am to 4 pm
April-Sep: Sun 10 am to 2 pm
Closed on public holidays.
In particular, travellers with a handicap shal be given reliable information on the extent to which tourist facilities are accessible to the disabled at the destination.
You can find the complete report here.
Further information about accessibility of sights and institutions in Darmstadt can be found here.