Berlin, a city that has seen dramatic changes and is still in transition, is now the largest rail hub in Europe. The city has residents from over 184 nations and half a million Berliners have foreign passports. With over 175 museum, 134,0000 students in universities and 130 non-university research facilities, Berlin is one of the truly intellectually stimulating cities in the world. Combine that with its openness and acceptance of different people and entrepreneurs in Berlin are free to explore ideas in a supportive environment.