India, June 21 -- At first glance, Coober Pedy looks like a sun-bleached, abandoned outpost in the middle of the unforgiving south Australian outback. But first impressions are entirely deceptive. Beneath its rugged, dusty surface lies a sprawling, hidden network of homes, businesses, and cultural landmarks carved from solid rock. Also read | Step inside unique house in Karjat designed like 100-foot suspension bridge; internet calls it 'art masterpiece'

A June 18 Instagram post by EarthPix shed light on this fascinating troglodyte community, capturing the world's imagination. To escape surface temperatures that reportedly soar past 45degC (113degF),the residents of Coober Pedy didn't just build air-conditioned houses - they moved entirel...