Duygu was exceptional. She tailored the tour to meet our schedule and interests, organized the tickets and provided enough historical context to keep everyone engaged--not an easy task for an inter-generational family. Further, she was very personal and helped us to plan the rest of our trip. The lunch spot near the Topkapi Palace was a highlight and a welcome rest. We highly recommend Duygu and feel fortunate that she was available during our visit to Istanbul.