Tourist Information of Frankfurt
Tourist Office Main Station
Address: inside the Hauptbahnhof
The tourist office usually opens at weekdays from 8 am to 9 pm and in weekends only until noon. At the tourist office you can get a Frankfurtcard which gives you reductions to all museums, as well as free use of public transport. The lifestyle magazine with all current events, the "Fritz" is available.
Medical Services
It provide a round the clock doctor service. The University Clinic at Theodor Stern Kai 7 in Sachsenhausen provide good midnight emergency.
Telephones
The international country code for Germany is +49
The national city code for Frankfurt is 069
If you call from abroad dial +49 69 followed by the individual number
Bookshops
There is a British bookshop in the Boerserstrasse at no. 17. It has a really good collection. Hugendubel at the Steinweg also has English books. It is a cosy place where you can sit and read the books you consider buying.
Post Offices
Address: Zeil 108-110
It opens from 9 am to 6 pm on weekdays, and remain open until 1 pm on Saturdays. There is also a post office in the central station and on the airport that remains open daily from 7 am to 9 pm.
Get More information on Frankfurt from Its Official Site
http://www.frankfurt.de/sixcms/detail.php?id=stadtfrankfurt_eval01.c.317693.de&template=hp_flash