Some sites Machu Pichu, The Pyramids, Petra are hard to review because they are so icconic, that there seems to be nothing more one can add.
The Taj Mahal is another such WHS, which like the afore mentioned places, really does take one's breath away; such is the power of it's radiant marble symetry.
However it does not function just upon a grandiose scale, up close the exquisite workmanship stuns, the gardens are seductive, and the ancillery buildings shield you from what by comparrison is the vulgar and mundane of the outside world.
I'm told the whole ensemble is supposed to be a relisation of heaven on earth. Did they succeed? Well if you can go and decide for yourself, it might just be the closest you get in this life to paradise.