In Petrovaradin, Serbia, a wide shot captures a large, ancient brick fortress wall with an arched opening

In Petrovaradin, Serbia, a wide shot captures a large, ancient brick fortress wall with an arched opening. The wall dominates the foreground and mid-ground. On top of the wall, a railing separates a grassy area where several people are standing and observing the surroundings. One person, a male wearing a green shirt and blue shorts, walks with a bicycle near the arched opening. The sky above is a pale blue with scattered clouds, indicating it is likely late afternoon or early evening. The environment appears to be an outdoor historical site.