Baroque architecture, spanning the 16th to 18th centuries, was characterized by its emotional appeal, intricate designs, and use of rich materials like gold and granite as a reaction to Renaissance styles. Major architects such as Francesco Borromini and Gian Lorenzo Bernini produced iconic works, including St. Peter's Basilica and the Château de Versailles, featuring bold forms, dynamic lighting, and elaborate ornamentation. The style evolved from classical roots, emphasizing grandeur and complexity with innovative geometrical designs and dramatic interiors.