If you have a spare day or two and you don’t mind traveling 40 miles, check out Sofia. This popular place offers up plenty to keep you busy. See the best sights beginning with Sofia Central Mineral Baths, City Garden and Bulgarian Army Stadium. Situated 55 miles away, Vidin is another place to aim for. If you drop by, be sure to check out Baba Vida Castle, Baba Vida Museum-Fortress and Georgi Benkovski Stadium.