An example of Mannerist architecture created at the behest of Clement VII, for 10 points, name this Florentine book repository designed by Michelangelo.
The floor of one room in this building features tiled depictions of four interlocking rings and scrolls that read "semper." A stained glass window in this building depicts five golden balls in a blue mandorla. One room in this building has a paneled wood ceiling depicting a series of astroids inscribed into ovals. That room in this building houses a series of desks, the back of each of which serves as a stand for the one behind it. One room in this building houses recessed pairs of columns atop non-structural volute corbels. This building's vestibule [*] staircase splits into three branches, one of which consists of overlaid ovals. An example of Mannerist architecture created at the behest of Clement VII, for 10 points, name this Florentine book repository designed by Michelangelo. 
The floor of one room in this building features tiled depictions of four interlocking rings and scrolls that read "semper."
Laurentian Library [or Biblioteca Medicea Laurenziana] 