crowded scene inside a metro station in Sofia, Bulgaria

crowded scene inside a metro station in Sofia, Bulgaria. Many people are ascending stairs or an escalator, mostly wearing winter clothing, such as coats and hats. Signage in Bulgarian can be seen directing people toward various exits and lines. The signs indicate destinations such as "ул. Гургулят" (Gurgulyat Street), "бул. Витоша" (Vitosha Boulevard), and "бул. П. Евтимий" (Patriarh Evtimiy Boulevard). A digital advertisement screen is also visible in the background. There's an automated defibrillator sign, indicating that emergency medical equipment is available.