The Baan Stambh (Arrow Pillar) is a pillar located near the Somnath Temple in Gujarat, India. It has an inscription stating that there's no landmass in a direct line from its location to the South Pole. This suggests ancient Indian knowledge of geography and possibly astronomy. The Baan Stambh is also referred to as "Abadhit Samudra Marg, Tirth Stambh (Arrow)".