The Church of Sant'Agnese in Agone is a Baroque church located in the Piazza Navona in Rome, Italy. It was designed by the architect Francesco Borromini and completed in the 17th century. The church is dedicated to Saint Agnes, a Christian martyr, and features a stunning façade and an ornate interior adorned with beautiful frescoes and sculptures. The church's design is characterized by its oval shape and dramatic use of light. The altar houses a relic of Saint Agnes, and the church is a popular site for both tourists and locals. Its location in the vibrant Piazza Navona adds to its appeal, making it a significant landmark in the city.