Grodno is the city in Belarus, where there are the largest number of preserved sights . There are many objects with the words - "the very first" and "oldest". This is probably the most European city in Belarus. Explore using OpenStreetMaps maps, where every house is marked, all that is worth seeing. Mark on the map, what You have seen, or what You are planning to see. Location indicator will help You not to lose your time or get lost in the city. Also in the program you can take a photo and mark them on the map.