The Church of San Sebastián was built in 1544 and is one of the oldest buildings in Lima. Santa Rosa de Lima (the patron saint of Lima) and San Martín de Porres (the first black saint) were baptized here. After the massive earthquake from 1940 that damaged the small church severely, it was beautifully rebuild. Worth seeing are the baptismal font made of marble and the ornaments of the richly decorated altar from Granada.