St-Alexander-Nevski Cathedral is, with its golden domes, the very emblem of Sofia. Built between 1904 and 1912, it boasts a vast (space for 6 000 members of the community) and sumptuous interior: polychrome Italian marbles, onyx from Brazil, alabaster... Many Russian and Bulgarian artists contributed to the decoration. Among them are Miasoedov, who painted the mural of the central cupola and Anton Mitov (1862-1930), who made the main door mosaic. Not to be missed: the crypt housing the Bulgarian museum of ancient art.