Marmara Guesthouse is a great place to visit all important historic attractions. We arrived at the evening and were able to walk to Hagia Sofia and Blue Mosque the same evening. It is only 5-10 min walk. Many great restaurants in vicinity. However the highlight of staying in this hotel is a breakfast. These delicious breakfasts are served on the terrace with the fantastic view on Bosphorus. We enjoyed the warm crapes. Also you can eat fresh scramble eggs with tomatoes and sausages, many salads and fruits. Our room 301 had a fantastic view on Bosphous and a lot of sunlight. The rooms are nicely decorated but they are small. You can not put two large suitcases. The hot water to make tea and coffee is evaluable all day. We usually enjoyed Turkish tea on terrace each evening. I had a great stay there. The staff offers the transport from the airport but we took taxi. It costs around 200TL.