It's one of those things I did almost out of grudging obligation but visiting the Taj Mahal well surpassed the hype. It's surrounded by lawns, flowers, and big trees, and the order and beauty is heaven (I was there at a rainy sunrise after 6 months in various hectic cities in Asia). The script on the walls was like someone had carved pages from the Book of Kells on the walls of El Capitan. If you're there definitely allow a day for the other architecture around the city.