India, July 22 -- The Golden Quadrilateral is a 5,846-kilometre-long highway network linking India's 4 major metropolises, including Delhi, Mumbai, Chennai, and Kolkata. It connects the distinct cultures, cuisines, and landscapes of these cities and offers people a chance to explore India's diverse heartland. You can explore the historic streets of Old Delhi, the bustling metropolis of Mumbai, the coastal beaches of Chennai and the cultural hub of Kolkata. If you have been searching for an epic journey, the Golden Quadrilateral road trip is one of the best options.

Check out our story on India's most scenic highways that offer the ultimate road trips.

What is the Golden Quadrilateral? NH 16, India | Image credit: T Creation, CC BY-SA 4....