The Black Hole of Calcutta is a historic site within Fort William, Kolkata, commemorating an infamous 1756 incident. A monument to the victims is located on the grounds of St. John's Church. # Why Go 📜 Learn about a pivotal event in British India's history. 🏛️ Explore the historical Fort William area. 📍 Visit a unique location featured by Atlas Obscura. # Why Avoid ⚠️ Only the footprint of the original cell remains, not a fully preserved structure. 😔 Somber atmosphere due to the tragic history. # Tips 📍 The site is located in an alleyway between the General Post Office and an adjacent building in the northwest corner of Benoy-Badal-Dinesh Bagh.