Photo: Hunanuk, CC0 Free viewpoints in Istanbul
Photo: Hunanuk, CC0 
Photo: Rrburke, CC BY-SA 3.0 Galata Bridge
Free, always
Photo: User:Darwinek, CC BY-SA 3.0 Eyüp Sultan Mosque and Pierre Loti Hill
Free, alwaysOrtaköy Mosque
Free, always
Photo: Keladawy, CC BY-SA 4.0 Bebek to Arnavutköy Bosphorus walk
Free, always
Photo: KOKO, CC BY-SA 4.0