#archeology
Have you ever heard about the Barabas Caves in India?
They're around 2.500 years old and nothing short but a world wonder!
Granite, polished so flat that it shines like a mirror and nearly as precise as a window glass, but in rounded form.
Astounding!
»Barabar - Full movie HD, documentary (Civilization, Archeology)«
https://inv.nadeko.net/watch?v=BZXuFN29eW8