cont with Michelangelo..
Architecture: Other than the aforementioned Medici Chapel in San Lorenzo, Michelangelo also designed other famous buildings. St Peter's in Rome of course, and the Farnese palace. He designed the Capitoline Hill.
For me, though again those mentioned above are outstanding, I really enjoyed visiteing the Laurentian Library. The vestibule and library itself are well worth visiting. They show off his talents well.
I only wish he had lived longer and left more for us to enjoy.
I have made trips to see most of his surviving works and will certainly aim to see the rest in person before I die.