Ermida de São Sebastião (Hermitage of Saint Sebastian) is a mannerist and baroque 16th-century chapel located just off Praça da República. An 18th-century reconstruction added tiles about depicting the life of the chapel's namesake saint. The chapel was declared a property of public interest ("imóvel de interesse público", IIP) in 1984. Ermida do Espírito Santo (Hermitage of the Holy Spirit) is a mannerist and baroque chapel located on Largo João de Deus, uphill from the thermal hospital. Originally built in the 16th century, the hermitage was rebuilt in the 18th century. The chapel was declared a property of public interest in 1984.