One of the craziest parts of Istanbul are navigating the streets. Sidewalks suddenly have a car parked on them blocking your path...followed by a one-lane-wide street having two way traffic...and next there is a small courtyard with someone just sitting out enjoying the street passing them by. Being on foot in all the side streets really gives you the sense of the city and the vibrancy of it all. Go explore! You never know what you'll see.