World's Largest Roundabout: Place Charles de Gaulle, Paris

The largest roundabout in the world is Place Charles de Gaulle (historically Place de l'Étoile) in Paris, France. This iconic 12-lane, star-shaped junction spans approximately 240 meters (787 ft) in diameter and connects 12 major avenues, including the Champs-Élysées. The Arc de Triomphe stands at its center. Designed by Baron Haussmann in the 1850s and expanded in the 20th century, it handles intense traffic volumes and is a symbol of French urban planning. Other contenders (e.g., Putrajaya, Malaysia; Swindon, UK) are large but smaller in diameter or capacity.