Istanbul is very chaotic and going through a well-thought city route that covers a lot of good spots both hidden and must-see ones is a great opportunity to make. It would save a great time for the visitor and also localize the experience. You can learn a lot about the current news, trends, culture which might be broader and more open-minded that what you could find available on a blog post or a old time youtube vlog.
This visit to the 15th-century palace is very telling to understand the life and culture during Ottoman Empire that took Istanbul from Romans in 1453 and ruled until the foundation of Republic of Turkey in 1923. Topkapı Palace Fee > 1500 Lira
We will learn about Hagia Sophia, which was an imperial worship place both for Islam and Christianity. No admission fee.
At Hippodrome Area we will learn about the culture and entertainment hub of Roman and Ottoman Empire and also learn the background story of the interesting monuments such as Serpent Column and Obelisk of Theodosius.
You will make your own way to the meeting points