Think Ujjain, not just as a spiritual hub, but as an ancient economic powerhouse where Ashoka’s edicts met merchant caravans. And now, fresh digs at Vaishya Tekri are rewriting what we know about how faith moved with货 (goods) and gold. Meanwhile, climate change isn’t just melting glaciers; it’s cracking Humayun’s Tomb, drowning Venice, and eroding temples carved into cliff faces. Heritage sites weren’t built for 45°C summers or rising seas. UPSC wants you to connect the dots: how ancient networks shaped culture; and how modern chaos is unraveling it. Ready to write like a historian who also reads the weather forecast?