Baroque architecture originated in 17th century Italy and France as a style that glorified absolute rulers through elaborate, decorative designs featuring twisted columns, curves, ornate details, and optical illusions. It spread across Europe and was characterized by features like domes, abundant windows, and ceiling frescoes that created a sense of movement. Significant examples include St. Peter's Basilica in Rome, the Chateau de Versailles in France, and Jesuit churches in Hungary built to showcase this ornate architectural style.