Built opposite the university at the request of Maria-Theresa, the Academy of Science is built in classical French style. One of the most memorable concerts in history took place here on 27 March 1808. Haydn's Creation was played in his presence as guest of honour at this great gala evening, attended by Beethoven and an audience crying with emotion. This was the supreme honour for the much-admired old master. The premises have been occupied by the Academy of Science since 1857.