This is the Church of San Lorenzo in Florence, Italy. The inside is a prime example of Brunelleschi's incorporation of classical architecture and its aspects of it. He visited Rome in 1403, and during the trip, he became inspired to implement the classicist ideas of Greek and Roman architecture that existed for centuries. For the interior, he included features like columns and arches. The design of the church is also emblematic of the symmetrical aspect of Renaissance architecture. Brunelleschi used a series of squares and rectangles and integrated mathematical proportions when designing the interior. However, Brunelleschi had little control over the construction process and after his death, other architects had changed the design to what he originally envisioned it to be.
Saalman, Howard. Filippo Brunelleschi: the Buildings. A. Zwemmer, 1993.
Image: https://commons.wikimedia.org/wiki/File:Exterior_of_the_Basilica_of_San_Lorenzo_-_0828.jpg
