Favorite thing I had to visit the Asian side, and, in a quick look, tried to find any difference - I didn't. As a matter of fact that continental separation is only a convention, without any differences in landscape, people or construction.
The bridges that connect them have that special meaning - only a few meters of water separating two parts of the same country, the same people, the same city.
Only one difference - history and tourism are mainly in European side.
Favorite thing You could be forgiven for thinking Istanbul's attractions all centre around historical sights, but for me a lot of them centred around - fish.
We frequently went to Kadıköy which means Judges Village. This is an area on the Asian side of the Bosphorus and it has some excellent restaurants. We would walk along the front where rows of fishing boats would sell their wares to passers by. My favourite fish was palamut. This translates into English as bonito when I look it up. In my opinion it looks and tastes very much like mackerel.
Once we had selected our fish the fishermen would top and tail it, gut it and cut it into fillets or pieces for us. I would bake my palamut in my little mini-oven with a little butter and black pepper. It was delicious.
Favorite thing Current name of the town is Kadikoy.Ancient name is Khalkedon.There is nothing left from ancient Khalkedon now.You can see a crowded conquiret modern city.Kadikoys best place to visit town market.Take a public boat from Eminonu (Port number 2) after 20min you will be at Kadýkoy.There isnt any ancient thing to see but you can see the old Kadýkoy Fruit Hall (Now it is art school) also there is old municipality building.Cross the street and go to Kadikoy Carsisi.You can find fast food shops ,A greek church,an armenian church,old style buildings and smell of the fruits ,fish,cheese and turkish coffee.