Final answer:
The ceiling of the Sistine Chapel and the sculptures David and La Pieta were created by Michelangelo, who also helped design St. Peter's Basilica in Rome. Leonardo da Vinci painted the Mona Lisa and The Last Supper and envisioned futuristic inventions such as the bicycle and airplane.
Step-by-step explanation:
The artist who painted the ceiling of the Sistine Chapel is Michelangelo. He was a master of many art forms, including painting and sculpture, and despite initially hesitating to paint, he took on the massive project of the Sistine Chapel ceiling, completing it with a series of frescoes that have become iconic.
The artist whose important works include the Mona Lisa and The Last Supper is Leonardo da Vinci. Not only was he a celebrated painter, but he also had a visionary mind, imagining inventions like the bicycle and the airplane centuries before they were a reality.
Michelangelo also helped design St. Peter's Basilica in Rome, showcasing his architectural skills alongside his sculpture and painting talents.
Finally, the artist who created the sculptures David and La Pieta is again Michelangelo, demonstrating his unparalleled skill as a sculptor during the High Renaissance period.