Luxury, uau! The lighting, and windows and look at those mirrored table & chairs!
Opéra Garnier, Paris
The Klementinum library, a beautiful example of Baroque architecture, was first opened in 1722 as part of the Jesuit university, and houses over 20,000 books. It was voted as one of the most beautiful and majestic libraries in the world.
L'Opera de Paris Garnier, Paris, France -"Ballroom - L'Opera de Paris Garnier" by timlam18, via Flickr