Max Planck Institute for Intelligent Systems
The Max Planck Campus on Spemannstraße (see map above) is in a leafy residential area on a hill above Tübingen's old town. As you enter the campus on Spemannstraße, you'll see the greenhouse of the MPI for developmental biology on your left. On the opposite side of the road, to the right of the central square, you will find the entrance to the Max Planck House. We will also put up signage. For those of you fond of geocaching, the entrance is at 48°32'10.68''N and 9°03'31.47''E. You can find more information on how to get to the campus, including bus links, at this local page.
Transport to Tübingen
The nearest international airport is Stuttgart. If your are arriving on a flight to Stuttgart, the best connection to Tübingen is offered by the bus line 828, which leaves directly outside the terminal and ends at the main train station in Tübingen (Tübingen Hauptbahnhof). The main train station is at the southern end of the city centre, within reach of either bus, taxi or even a walk to most hotels and hostels.
Larger, and also within reach of a 2-3 hour train ride from Tübingen is Frankfurt International. The best connection from there to Tübingen is via high-speed rail link from the airport to Stuttgart main station, then on from there with a local train. See "by train" for more information.
Detailed train information is available on the website of Deutsche Bahn. Use the pulldown on the top of that page to select your preferred language, then enter your starting station (e.g. "Frankfurt Flughafen") and end station ("Tübingen Hauptbahnhof") in the relevant fields at left.
Public transport in Tübingen and finding your way to the campus
Here is a map marking the Max Planck House on campus and surrounding bus routes. The best way to campus depends on where you are staying. For most people out of walking distance, the best bus lines will be 4, 17 and 3, with their stops at "Ochsenweide", "Corrensstraße", and "Max-Planck-Institute".