What is sant andrea della valle?

Sant'Andrea della Valle is a church located in the historic center of Rome, Italy. It is one of the largest churches in the city and was built in the late 16th century. The church was commissioned by Cardinal Montalto and designed by architect Giacomo della Porta. The church has a grandiose façade and a majestic dome. Inside, it features numerous chapels, frescoes, and sculptures. Of particular note is the high altar, which is adorned with a bronze baldachin (a type of canopy) designed by Carlo Maderno. The church is also famous for its association with the Italian composer Giacomo Puccini, who used it as a setting for his opera "Tosca". Sant'Andrea della Valle is a popular destination for tourists and locals alike and remains an important center of Roman Catholic worship.