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From the main train station, take tram line 63 or 16 (towards Cologne), which leaves from subway track 1. Get off at the second stop ("Probsthof Nord") and turn right into the street "Am Probsthof" after leaving the stop. Go straight on at the traffic circle until you turn left into "Gerhard-Domagk-Straße" after about 500 m. The second building on the right-hand side are the Chemical Institutes.

• Coming from Cologne
  
  

  Leave the A565 freeway at the Bonn Endenich exit, turn right at the end of the exit onto "Hermann-Wandersleb-Ring" and take the next street right onto "Auf dem Hügel". After about 700 meters turn right into "Probsthof" and then after about 450 meters turn right again into "Gerhard-Domagk-Straße". The second building on the right side are the Chemical Institutes of the University.

  
  
  
• Coming from Koblenz
  
  

  Leave the A565 freeway at the Bonn-Tannenbusch exit, turn right at the end of the exit into Lievelingsweg and right again into Bornheimer Straße. Quickly change to the left lane so that you can continue on Bornheimer street until the next traffic light, where you turn right into "Probsthof". Drive straight on for 700 m (at the traffic circle take the 2nd exit) and then turn left into "Gerhard-Domagk-Str.". The second building on the right side are the Chemical Institutes of the University.