Pictures

 Massachusetts, USA:                       1, 2, 3, 4, 5
 Worcester, Massachusetts :              1, 2, 3, 4, 5
 Princeton, New Jersey, USA :          1, 2, 3
 Philedelphia, Pennsylvania, USA :     1, 2, 3
 Santa Barbara, California, USA :      1, 2
 Bochum, Germany :                         1, 2 , 3, 4, 5, 6, 7, 8, 9
 Munich, Germany :                           1, 2, 3, 4, 5, 6, 7, 8
 Frankfurt, Germany :                        1, 2, 3, 4, 5, 6, 7, 8, 9
 Cologne, Germany :                         1
 Dusseldorf, Germany :                     1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12
 Berlin, Germany :                             1, 2, 3, 4, 5, 6
 Bilkent, Turkey :                              1
 Koc University, Istanbul :                 1, 2, 3 , 4, 5, 6
 Istanbul, Turkey :                             1, 2, 3, 4
 Kayseri, Turkey :                             1