It's true, you can go 'round Agra in a day even if I chose to do otherwise. I've always been smitten by the thought of Taj Mahal and took my time sitting there and just staring at it. I once read that the special thing about Taj Mahal is that you sit there the whole day and you'll see the beautiful theoretically white structure turn from pink to blue to yellow to orange and to green. Well, not in that specific order.