Come face to face with some of Raphael's most famous works, including 'The School of Athens' and 'The Parnassus' in the Room of Signatura, and 'The Expulsion of Heliodorus' in the Room of Heliodorus. Raphael used an inversely proportional approach to his frescoes; he minimised the number of people — to maximise their dynamism and emotional force.