Article Detail Which is Longest road tunnel in the World ? Answer: Lærdal Tunnel (Norway - 24.51 kilometre) Similar Questions : 1. What is the name of tallest Animal ? Answer: Giraffe 2. Which is the biggest museum in the world ? Answer: British Museum, London 3. Which is longest river of India Answer: Ganges 4. Which is the longest Platform ? Answer: Gorakhpur railway station, Uttar Pradesh, India (1355.40 meters) 5. Which is the longest River in the World ? Answer: Nile 6. Which is the Densest populated State of India ? Answer: West Bengal 7. Which is the shortest day in the year ? Answer: December 22 Read more from - Longest and Largest