The Church of San Andrea della Valle is a prominent Baroque church located in Rome, Italy. It was commissioned by the Theatines, a religious order, and construction began in 1608, concluding in 1650. The church is renowned for its stunning dome, which is one of the largest in Rome, and its beautiful interior adorned with frescoes and sculptures. The church is dedicated to Saint Andrew and features a grand façade designed by Carlo Rainaldi. Inside, visitors can admire the impressive altars and the famous painting of the Martyrdom of Saint Andrew by Giovanni Battista Gaulli. The church is an important example of Baroque architecture and attracts many tourists and worshippers alike.