Nivix
An immense tower that competes in size with New Prahv, each floor of the tower houses alchemists, mages, and Izzet-wise individuals who theorize, try out and throw constantly miscalculated experiments between rooms. Nivix is said to be protected by the most sophisticated sigils ever designed. The guildhall is also a maze that is heavily guarded and wrapped in protective wards to deter intruders. Workshops, barracks, and laboratories are located in the lower stories, while the upper levels are home to the most senior members of the guild. Within the highest floor of the tower is Niv-Mizzet's aerie, a single massive room sized for the Firemind and filled with books. Even though none of the experiments held in the tower's rooms are linked, the big dracogenius considers them a part of a bigger, unique experiment.