🌙 Did you know that the Chankillo Archaeoastronomical Complex is the world's oldest observatory? This prehistoric site is located on the north-central coast of Peru. Built in 250-200 BCE, the complex has a line of 13 cube-shaped towers that can track key dates every year, like solstices and equinoxes, with an accuracy of 1-2 days. 📅 Join us in conversation with Professor Fred Watson AM, hosted by Professor of Architecture and host of ABC TV’s Grand Designs, Anthony Burke, to learn about the Chankillo Archaeoastronomical Complex, home to the oldest solar observatory in the world. The event will feature an Auslan interpreter. Find out more: https://bit.ly/4ibhzsc 📸: David Edgar via wikimedia
