Thessaloniki–Alexandroupolis railway
The Thessaloniki–Alexandroupolis railway is an about 440 km (270 mi) long railway in northern Greece connecting the Central Macedonian city of Thessaloniki with Alexandroupolis in Eastern Macedonia and Thrace, via Serres. There is a connection towards Sofia at the Strymonas station.
Source: Wikipedia — Thessaloniki–Alexandroupolis railway (CC BY-SA 4.0)