Sofia is one of the most interesting eastern European capitals. The area had human population since the year 7000 BC, so it means a lot of different cultures and religions passed through this land.
St. Alexander Nevsky Cathedral is one of the most remarkable ones. This Orthodox church cathedral, built in a Neo-Byzantine style, is one of the largest ones of its kind in eastern Europe.
I had the opportunity to visit Sofia in the autumn of 2016, and I really liked this city and would love to visit again.