Underground Istanbul

Underground Istanbul refers to the city's hidden historical and cultural sites located beneath the surface. This includes ancient cisterns, such as the Basilica Cistern, used for water storage, and a network of tunnels and chambers that once served various purposes throughout Istanbul's history. These underground spaces reveal layers of the city's past, showcasing its Roman, Byzantine, and Ottoman heritage. Visitors can explore these sites to gain a deeper understanding of Istanbul's rich history and the engineering marvels that have supported the city for centuries.