A mystery in middle India: An ancient 80-km wall no one knew about

A mystery in middle India: An ancient 80-km wall no one knew about

It’s a whodunit, a jigsaw puzzle and a history lesson all in one. In the heart of Madhya Pradesh, at the very centre of India, stands a massive stone wall that’s odd, as walls go. It runs straight in parts, zig-zags wildly in others, stops or branches off where you...