India, Nov. 10 -- Which is Delhi's greatest monument? Grandeur alone won't do. Age also matters. When you look at a truly old monument, you're looking at all the centuries it has stood there and the history that has seeped into its stones. To qualify, a monument should predate British-built New Delhi and retain much of its original structure. The hardest test is how much a monument belongs to the city's everyday life. Tughlaqabad Fort and Purana Qila can feel a world away from the street. The tombs in Lodhi Garden come closer. For those who walk in the park every morning, the tombs are part of the round. Or take Qutub Minar. You can see it across south Delhi, even from the rooftops of South Extension. The tower tapers as it shoots skyward, ...