Sofia is a fascinating "Symphony of Religions" where 2,000 years of history are visible in a single city block. Beneath its yellow-cobbled streets lie the ruins of Roman Serdica, while the 4th-century St. George Rotunda stands as the city's oldest preserved building. From the gold-domed Neo-Byzantine Alexander Nevsky Cathedral to Ottoman-era mosques and socialist-realist monuments, Sofia’s heritage is a dense, layered testament to its position as a bridge between East and West.
