istambul--

--a port in NW Turkey, on both sides of the Bosporus: built by Constantine I on the site of ancient Byzantium; capital of the Eastern Roman Empire and of the Ottoman Empire; capital removed to Ankara 1923. --is  a  hub of  tourists  from around  the  world,  a  melting  pot  of  eastern and  western cultures, everywhere  educational  institutes, universities , schools, colleges  are  seen,  professors  are  multilingual , natives  are  highly  advanced  and  competitive  in learning  high  tech  computerized, subjects, chemistry, physics and  have  labs  to  experiment  their  scientific  inventions