The city had just been blanketed with a 10 inch snowfall and the temperature hovered just below freezing during the entire 3 hour tour but it was so fascinating, we didn’t mind the conditions one bit. Our guide, Krasi, was totally passionate about his country and the city of Sofia. The tour gave us a really great insight about the history of Bulgaria, without going into so much detail that it became boring. It gave us a good idea of which sights we wanted to return to. I can’t believe that this tour is offered without charge (although tips for the tour guide are certainly appropriate). This tour is a MUST for first-time visitors. We highly recommend it.