tomb lihyan son of kuza or qasr al-farid at hegra, saudia arabia - most popular landmark in mada'in salih

hegra ksa saudi arabia tourist landscape historic tomb lihyan son ancient majestic hot sunny al ula alula arabian archeology architecture desert famous formation geology gravestone heritage history kuza landmark middle east monument mountain nature old orange qasr alfarid rock saleh sand sandstone stone tourism travel unesco view culture carved site