Hello - What public transportation is available in Bulgaria? Is it easy to move about the cities and country at large? What modes of transport are available: Bus? Underground/Subway? Trams? Trains? Do you use public transportation in Bulgaria? Can you recommend it? Is it safe, inexpensive, and reliable? What is your experience? How much is a basic fare? Is there a monthly card, or discount options? Thank you for sharing your tips, questions and advice!