🇪🇬 Egypt · Megalith
Nabta Playa Astronomical Site
Early Holocene Neolithic (~7500–3500 BCE) · Nubian Neolithic pastoralist (El Nabta culture)
Beside a fossil playa that filled during the African Humid Period, nomads erected a 5-m mini-Stonehenge of quartzite slabs and radial lines pointing to summer solstice sunrise and to Sirius/Arcturus.