Gebel Al-Silsila, Egypt, North Africa, Africa

egypt nile river sandstone quarry ancient history north africa riverbank lush vegetation blue sky nature archaeological site landscape tourism exploration culture geology sightseeing heritage natural arch tranquil serenity relaxation vistas river flora fauna outdoor adventure travel history scenic excavation craftsmanship rock formations desert ancient civilization art inscriptions historical site stonework sunlight earth tones nature preserve heritage site ancient architecture cultural heritage river view natural beauty