Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Historic Areas of Istanbul' has mentioned 'Confluence' in the following places:
Occurrence Sentence Text Source
[15] Historically, the city has been ideally situated for trade and defense: The confluence of the Sea of Marmara, the Bosphorus, and the Golden Horn provide both ideal defense against enemy attack and a natural toll-gate.
Panoramic view of Istanbul from the confluence of the Bosphorus and the Sea of Marmara.