The vestibule of the Laurentian Library has Mannerist features which challenge the Classical order of Brunelleschis adjacent church. Michelangelos redesign of the ancient Capitoline Hill included a complex spiralling pavement with a star at its centre. Michelangelos design for St Peters is both massive and contained, with the corners between the apsidal arms of the Greek Cross filled by square projections. The exterior is surrounded by a giant order of pilasters supporting a continuous cornice. Four small cupolas cluster around the dome.