Istanbul’s globally renowned Grand Bazaar welcomes approximately 400,000 tourists daily, bustling with activity across its 65 streets, 14 inns, and nearly 3,600 shops. However, beneath this dazzling and illuminated world lies a mysterious realm that has remained largely unchanged for centuries. A $200 million royal project is currently underway. Umit Barksoy, an 88-year-old veteran jeweler from Istanbul, describes the hidden, deserted, and almost ghostly city below the market. The project aims to reveal the secrets of the Bazaar's enduring existence and its fascinating history. This exploration promises to uncover details about the Bazaar’s construction and the lives of those who have shaped its legacy over the past five centuries.