📜 William Smith's iconic geological map, the first of its kind for an entire nation. 🔍 Hidden behind green velvet curtains in the Geological Society building. # Why Go 🗺️ See the "map that changed the world" 💎 Iconic work of cartography, shaped modern geology 🎨 Vivid, hand-drawn map, a beautiful work of art 🧠 Learn about the "father of English geology" 🏛️ Explore the historic Geological Society building # Why Avoid 🚫 Limited viewing hours 🤫 Hidden behind curtains, not always fully visible # ℹ️ Tips 📚 Recommended to read "The Map That Changed the World" by Simon Winchester # 🕒 Hours Weekdays, 9:30 a.m. to 5 p.m.