Istanbul is a city that amazes for its magical atmosphere, the result of a thousand-year history that has its roots in the times of Emperor Constantine the Great, a meeting point between the West and East, between Europe and Asia, between tradition and innovation. Byzantine, Ottoman, Turkish: Istanbul is a city that was conceived to be the new Rome and which is the beating heart of a nation in constant motion. Lying on the shores of the Bosphorus, the strait that connects the Black Sea to the Sea of ​​Marmara, guards an historic center declared World Heritage Site by UNESCO and stretched out on the Golden Horn, the natural harbor on the European shore of the Bosphorus around which the city has developed. The skyline of Istanbul is a succession of domes and minarets, concentrated in the Sultanahmet district that houses the Blue Mosque and Hagia Sophia. And there is also an Ottoman Istanbul that proudly displays the vestiges of its glorious past as the Topkapi Palace, the monumental residence of the sultans.