Once known as Constantinople, Istanbul has many layers of cultural history below. Four archaeological sites lie in the path of the subway line currently under construction. Tunnels between the stations will be 30 m deep to run below the historical ruins, but shafts for escalators and concourses will penetrate the archaeological layer. A shipwreck has been discovered at Yenikapi, which was a harbor during Byzantine times. The pieces of the boat, which dates to either the 11th or 13th century, are being moved and eventually will be displayed as an exhibit in the station .
Exhibits in stations:
Yenikapi station (under construction): Display of a Byzantine shipwreck found during construction.