The Justinianus Bridge in Adana, Turkey, is a centuries-old Roman bridge that still stands today and is open for foot traffic. It was built by the Romans around the year 380 and has been used throughout history by the Umayyads, Ottomans, and contemporary Turks. The 1,056-foot-long span is a functioning part of modern Adana, with people using it to get to work, ride bikes, and push bread carts across. Visitors can enjoy great views, including of the Sabanci Central Mosque, Turkey’s second-largest mosque, and the archaeological museum, which has a diverse collection of bygone treasures, including gold and silver jewelry and Roman-era sarcophagi. Merkez Park, an 82-acre expanse of public greenery, is a peaceful retreat for families. Visitors to the mosque are welcome, as long as they dress modestly, and the mosque and bridge are open every day of the week, free of charge.