Photo: Adli Wahid, CC BY-SA 3.0 Free landmarks in Istanbul
Photo: Adli Wahid, CC BY-SA 3.0 
Photo: Ninara, CC BY 2.0 Hippodrome of Constantinople
Free, always
Photo: Jorge Franganillo, CC BY 2.0 New Mosque
Free, always
Photo: Rrburke, CC BY-SA 3.0 Galata Bridge
Free, always
Photo: GrandEscogriffe, CC BY-SA 4.0 Galata Tower
Free outside, paid inside
Photo: Mark Ahsmann, CC BY-SA 4.0 İstiklal Avenue
Free, alwaysOrtaköy Mosque
Free, always
Photo: Metuboy, CC BY-SA 4.0 Beyazıt Square
Free, alwaysEminönü Square
Free, always
Photo: Laima Gūtmane (simka…, CC BY-SA 3.0 Valens Aqueduct
Free, always
Photo: flowcomm, CC BY 2.0