A magnificent art gallery. World-famous masterpieces by Raphael (including The Transfiguration, the artist's last creation), Leonardo Da Vinci, Titian, Caravaggio, etc. Thirteen halls of masterpieces!
The Vatican Museum. Huge. You can walk around the halls all day, it is convenient that there are terraces where you can relax in the fresh air. Have a snack at the restaurant. The Sistine Chapel is divine. St. Peter's Cathedral Peter is unforgettable. I want to come back again and again. I definitely recommend it.