Day 1 — Sofia: the historic heart and Alexander Nevsky Cathedral
🚶 Start with the bright square by the Cathedral of St. Alexander Nevsky—white stone, golden domes, and the ringing of bells create a sense of space and calm right in the center of the capital. Walk along the “yellow cobblestones” of Tsar Osvoboditel Boulevard to the monument to the Tsar Liberator, and stop by the National Gallery “Kvadrat 500” (nearby, behind the cathedral)—inside, in spacious halls, Bulgarian art sits alongside galleries from Europe, Asia, and Africa. On the way you’ll notice stone façades, arcades, and cafés with terraces—Sofia is easy to read on foot: wide avenues, low-rise buildings, lots of greenery. In the evening—dinner around Graf Ignatiev Street, then a stroll to the Ivan Vazov National Theatre and the city garden: the stage in the classical building is softly lit, street musicians play nearby, and the air smells of warm banitsa pastry.