Explained in one line: How Sinan used structural mathematics to build the Ottoman Empire into a "civilization of domes."
Small group slow tour, skip the queue for the palace, avoid the crowds at Hagia Sophia: Suleymaniye Mosque has fewer people, offers in-depth explanations, and a free panoramic view of the Golden Horn.
From "religious architecture, imperial education, the emperor's life and death, commercial machine, Mediterranean spice network," a notch above simply visiting temples or shops