GYEONGJU, North Gyeongsang Province -- Remnants of roof tiles and Buddhist relics from the Unified Silla to the Goryeo periods were uncovered during sewage pipe construction in Gyeongju, North Gyeongsang Province, the Cultural Heritage Administration announced during a press conference at the Gyeongju National Research Institute of Cultural Heritage, on Tuesday. Among the roof tiles, a tile fragment inscribed with Ch...