Blanche DuBois certainly knew what she was talking about.
First of all let me say if you are staying at a hotel in the Notting Hill section of London, DO NOT LEAVE ON A SATURDAY MORNING! The world and its wife comes to an open air market on that day. Antiques dealers and pretend antiques dealers and people selling t-shirts that say "Don't Panic! I'm Islamic" are all over the place. Walking down the street was tough. Walking down the street with luggage was a nightmare. The next time I will stay over Saturday. Then I can enjoy being a part of that press of humanity.
So I arrived in Istanbul a little bit ago. It is a little after midnight. I am exhausted and I think I got taken at the airport by a taxi company. I was offered a ride and then told it was going to cost 100YTL for the service (this is about $80). I let is slide because I was so tired.
I have to be up at 5 to fly to Ankara to begin my tour. But even with the exhaustion nothing can compare to seeing Hagia Sofia and the Blue Mosque at night glittering in the hard cool air.