Article Detail Which is Largest Dome in World ? Answer: St. Peter's Basilica (Rome) Similar Questions : 1. Which is smallest state by area of India ? Answer: Goa 2. Which is the longest River in the World ? Answer: Nile 3. Which is the highest waterfall in the world ? Answer: Angel, Venezuela 4. Which is the largest desert in India ? Answer: Thar (Rajasthan) 5. Which is the state largest by area in India ? Answer: Rajasthan 6. Which is the lightest metal ? Answer: Lithium 7. Which is the largest Zoo in India ? Answer: Zoological Gardens, Alipur, Kolkata Read more from - Longest and Largest