Multiple choice Which one is the oldest ? Sarnath's Lion Capitol Taj Mahal Red Fort Iron Pillar Reveal answer Fill a bubble to check yourself A Correct answer Explanation The Sarnath Lion Capital dates back to the 3rd century BCE (Ashoka's reign), making it significantly older than the Taj Mahal (17th century), the Red Fort (17th century), or the Iron Pillar (4th century CE).