Coordinate: 41º01’42.83’’K 28º58’26.51’’D Height: 79 m
Istiklal Street is finished after reaching the tunnel. The tunnel is a 573 meters long historical public transportation system connecting Beyoğlu and Karaköy. It is important for being the second oldest underground transportation system of the world. Construction was started in 1871 and it inaugurated in January 18, 1875.