What do I not know about the Taj Mahal?

There are probably a lot of things you don't know about the Taj Mahal. A few things I have found out are:
1. The building is considered so sacred that you have to remove your shoes before climbing the stairs.
2. To transport water to the water fountains and bathrooms inside the Taj Mahal, it is raised from the river and stored in three overhead tanks where pipes take the water around.
3. The four minarets on the corners of the base are built slanting slightly outward. This was done purposely for the reason that if they fell, they would not destroy the main dome.
4. The famous poet, Edwin Arnold, once wrote:
"Not architecture, as all others are,
But the proud passion of an Emperor's love
Wrought into living stone which gleams and soars
With body of beauty, shining soul and thought."