Article Detail Which is Largest Dome in World ? Answer: St. Peter's Basilica (Rome) Similar Questions : 1. Which is smallest continent of world ? Answer: Australia 2. Which is the Largest lake of the world ? Answer: Caspian Sea (371,000 sq km) 3. Which is the longest Platform ? Answer: Gorakhpur railway station, Uttar Pradesh, India (1355.40 meters) 4. Which is longest railway station ? Answer: Grand Central Terminal, Chicago(USA). 5. Which is the lightest metal ? Answer: Lithium 6. Where is largest Archipelago ? Answer: Indonesia 7. Which is Largest railway route in India ? Answer: Dibrugarh in Assam to Kannyakumari in Tamil Nadu. Read more from - Longest and Largest