Article Detail Which is the biggest country in Area ? Answer: Russia Similar Questions : 1. Which is Largest library in the world ? Answer: United State Library of Congress, Washington D.C. 2. Which is the longest road in India ? Answer: Grand Trunk Road (2500 Km) 3. Which is longest river of India Answer: Ganges 4. Which is Longest road tunnel in the World ? Answer: Lærdal Tunnel (Norway - 24.51 kilometre) 5. Which is the highest waterfall in the world ? Answer: Angel, Venezuela 6. Which is Largest Dome in World ? Answer: St. Peter's Basilica (Rome) 7. Which is smallest and largest bird ? Answer: Smallest Bird is Humming Bird and Largest bird is Ostrich Read more from - Longest and Largest