Which famous architectural structure is attributed to Gian Lorenzo Bernini?

Gian Lorenzo Bernini is renowned for his pivotal role in Baroque architecture and sculpture, and one of his most significant contributions is to St. Peter's Basilica in Vatican City. Although he did not design the entire structure, his involvement in its transformation during the early to mid-17th century was instrumental, particularly in the creation of the grandiose colonnade that welcomes visitors into the piazza.

Bernini's design emphasized the grandeur and theatricality characteristic of Baroque art, which aimed to inspire awe and evoke a sense of divine presence. The colonnades are designed as a gesture of open arms, embracing the faithful and symbolizing the church's reach. His work at St. Peter's Basilica represents the culmination of Renaissance ideas extending into the Baroque period, showcasing an intricate blend of architecture, sculpture, and urban planning.

In contrast, the other structures listed have differing historical authorship. The Colosseum was an ancient Roman amphitheater constructed long before Bernini's time, the Pantheon is a temple that dates back to Roman antiquity and is attributed more to the architects of that era, and the Florence Cathedral, while architecturally significant, is not associated with Bernini, but rather with figures like Brunell