We are indeed occasionally organizing visits of the Sorbonne, but the most beautiful rooms like the Grand Amphithéâtre are not open except on visits organised by the Sorbonne. We'd only be able to show you the big Amphis, the cour d'honneur that are open to everyone anyway.
For a whole visit including the places you mentioned, you can send an e-mail to Visites.Sorbonne@ac-paris.fr. Visits are for 10 to 30 people and cost 4€ per person, from monday to friday and one saturday per week
Let us know if we can help further ![url][/url]