Ключевые слова: basilica of santelia, calcata, carved church, carved house, carved in rock, castel santelia, central italy, civita di bagnoregio, cliff, crag, diving, erosion, eruption, etruscans, fortified walls, frescoes, italian basilica, italian sanctuary, italy, landmark, landscape, latium, lazio, medieval town, middle age, national museum, nepi, old town, rocky, rome, stone village, tourist, tourist attraction, tourist destination, travel destination, tuff rock, unesco, unesco world heritage, vertical cliff, viterbo, volcanic rock, volcano, walled town,