The Florence Duomo, the central cathedral in Italy, was completed in 1436. After its formal completion, Andrea del Verrocchio, Leonardo's mentor, was called to put a bronze ball and cross at the top of the dome. It was an enormous feat that challenged the engineering and architecture of the time period. Leonardo was a young apprentice under Verrocchio at the time, making this specific project compelling and began Leonardo's interest in engineering design and machines. 

The sacristy is a room traditionally used for priests to put on garments for a religious ritual. In this case, it was intended to be a mausoleum for the founder of Medici dynasty, Giovanni di Bicci de’ Medici. The room was designed by Brunelleschi, and has many elements that represent the epitome of Renaissance architecture. It emphasizes the use of fundamental geometric shapes, to create a sense of clarity and solemnity.

The Uffizi Gallery is one of the largest and most important Italian museums, storing a collection of priceless works of art from the Italian Renaissance and beyond. Cosimo de’ Medici commissioned Giorgio Vasari to design the building in 1560. It’s original function was to house Florentine legal and administrative offices, with a private gallery for the collections of the Medici family on the second floor.