1. Visit the Hagia Sophia Museum: Hagia Sophia is the symbol of Istanbul. This historical building was used as a church and mosque both in the Byzantine Empire and the Ottoman Empire. You can visit Hagia Sophia, which is now used as a mosque, and the artifacts inside at the Hagia Sophia Museum.
2. Explore Topkapi Palace: The center of the 3-continent Ottoman Empire, Topkapi Palace is an impressive palace with its historical and artistic value. The magnificent gardens and harem section of the palace await its visitors.
3. Shop at the Egyptian Bazaar: The Spice Bazaar is one of the oldest covered bazaars in Istanbul, where colorful spices, nuts and souvenirs come to mind. Shopping here and tasting traditional Turkish delicacies is a wonderful experience.
4. Take a Bosphorus Cruise: Take a boat tour to explore the Bosphorus. Watching the city's skyline from the sea and seeing the historic bridges and palaces offers an unforgettable experience.
5. Go to the Grand Bazaar: The Grand Bazaar is the largest covered bazaar in the world. With more than 4,000 shops, you can find all kinds of products here. Handmade jewelry, carpets, leather goods and more await you.
6. Enjoy the Panoramic View from the Galata Tower: Go to the top of the Galata Tower and enjoy the magnificent view of Istanbul. It is especially mesmerizing to be here at sunset.
7. Stroll around Sultanahmet Square: Sultanahmet Square contains important buildings such as Hagia Sophia, the Blue Mosque and the Basilica Cistern. A stroll around this historic square allows you to be immersed in history in the heart of Istanbul.
8. Discover Art and Culture in Karakoy: Karakoy is a modern neighborhood full of art galleries, cafes and restaurants. Here you can explore street art and contemporary culture.
9. Sightseeing in Kadikoy: Located on the Asian side, Kadıköy has a bohemian atmosphere and is an attractive neighborhood for travelers. A variety of restaurants, shops and markets await you.
10. Experience a Hammam: Head to a hammam to experience the tradition of the Turkish bath. Here you can relax, have a traditional Turkish massage and pamper yourself.

Istanbul offers the perfect blend of history, culture, and a unique atmosphere. By having these experiences, you will have the opportunity to fully explore this fascinating city. Have a good trip!