19-25 Hisaraltı Caddesi
Trace the Outlines of the Byzantine CapitalThe Theodosian Walls (aka The Walls of Constantinople) stretch just under 6 km across the border of Istanbul's Old City. Built by the Emperor Theodosius in the 5th century, they complimented an earlier protective wall built in the 4th century by Emperor Constantine.
After 1,600 years of weather and war, the walls are now a dilapidated reminder of Istanbul's ancient past. You can still walk along the fortification lines and trace the outline of this Byzantine capital- it's a perfect afternoon hike.