Purely History on Instagram: "In 2003, scientists in Brazil conducted a remarkable experiment on an abandoned ant colony believed to have once housed millions of ants. They poured roughly 10 tons of cement into the tunnels and chambers, then waited weeks for it to harden before carefully excavating the area. What they revealed was nothing short of astonishing — an underground city stretching over 8 meters deep and covering nearly 50 square meters. The structure featured ventilation shafts, highw