@halal_researcher: Al hijr is the place of thamud dwelling in Saudi Arabia and they built homes inside the mountains according to Quran. Prophet Muhammad also confirmed this location that this was the location that's mentioned in Quran also known as al ula. The Quran mentions that Thamud had gardens, springs, date palms etc and they built homes inside the mountains. Archaeological evidence at all hijr shows homes built inside mountains skillfully and water management, including over 130 wells, made for water distribution. These wells were crucial for watering their crops. Archaeological studies have also shown that the region surrounding Al Hijr was once a lush, green landscape with rainfall, and deep-groundwater-fed water wells. long before it became the dry, desert landscape it is today. This perfectly aligns Quranic historical detail about civilization of thamud.