The Bosphorus which is a natural boundary of Asian and European continents is an important sea passage for connecting Black Sea to Aegean and the Mediterranean seas. It is also one of the important places in Istanbul with its magnificent view. Wide meadows became recreational and picnic areas because of the intense structuring in 18th and 19th centuries. Coastline is filled with magnificent coast palaces, kiosks and mansions.
In Rumeli (European) side, starting from Beşiktaş there were coast palaces of sultans, coast palaces of women members of dynasty and spouses of senior managers in Kuruçeşme Coast in Ortaköy, residences of civil servants who were descendants of Byzantine. However, Tarabya and Büyükdere were a summer place of embassies with their summer residences, and foreign with their mansions.