The name says it all. No words needed. The heaven on earth!
There are three gates to enter the taj - The West gate, The East Gate and The South gate. The grand gate called Darwaza-i-Rauza is the entrance to the taj. Whichever gate you come from, you have to cross the Darwaza-i-Rauza to enter the taj. That feel when you see the mausoleum for the first time through the gate was mesmerising. And it took another half an hour to enter the mausoleum after standing in a long queue.
Adjacent sides of the Taj lies a mosque and a guest house. On the other side of the river yamuna was the Mehtab Bagh. Since the scintillation was going on in one of the minarets, couldn't have a full view of the whole Taj. Do check whether scintillation work is going on when you plan for Agra.