My first stop was the Galata Tower, a 700 year old structure that provides a really beautiful view of the surrounding area. All the major attractions can be seen from its balconies. Unfortunately most of it has been turned into a restaurant.
Leaving the tower I headed toward a church -- or so I thought. I got pretty lost and ended up walking along the Bosporus, which divides Europe and Asia. It was great as I still came across many interesting sights. My favorite was the Nusretiye Camil, in photo top left. At first I wasn't sure how to get a good photo of it, from the street it's obstructed by wires and trees. Looking around I saw a little wall that I figured I could climb up and get just enough clearance. It turned out to be a perfect view, though the people walking by gave me strange looks.
I stopped by a nice little park where I paid five Turkish lira to shoot balloons with a pellet gun, when I noticed a guy taking photos of me. Turns out he's from the U.S. and he thought I was shooting a real gun. We had a laugh about it and a nice long conversation about travels and such before going different ways.
Tomorrow I won't be doing much. I may go check out a nearby aqueduct and then probably come back to the hotel to sleep. My flight is very early (5:30 am) with a six hour wait in Frankfurt. I'll try to get rested for the journey home.