Towers of Canonicity and Likelihood
From Tardis Wiki, the free Doctor Who reference
The Towers of Canonicity and Likelihood were structures located on the Time Lord homeworld of Gallifrey and were noted for being Dimensionally transcendental. (EDA: The Gallifrey Chronicles)
It is possible that the Tower of Likelihood is the location of the Bureau of Possible Events. As the Tower of Canonicity may be the location of the Celestial Preservation Agency (preserving the canonicity of the universe).
