Sofia has been ranked the most affordable European city for US travelers by TripAdvisor, a travel review website based in Newton.
The firm has based its list on what it calls a TripIndex, which takes into account foreign currency exchange rates, hotel fees, the cost of a pizza, a dry martini, and a taxi ride.
The index shows how much it would cost for an American to spend a day in a particular destination and all destinations are ranked by value.
Sofia has emerged as the cheapest European detination for US travelers with [...]