The Carmo Convent was constructed between 1389 and 1423, standing out thanks to its elaborate Gothic architecture and decoration, with its main facade boasting several archivolts and capitals decorated with vegetal and anthropomorphic motifs. By the middle of the 16th century, it was the residence of more than 70 monks, paying land rents of approximately 2500 cruzados annually. The convent was destroyed by the terrible 1755 earthquake, and in what used to be the main altar is now an archaeological museum, featuring, among other exhibits, the tomb of King Ferdinand I, a remnant from a Visigothic pillar, a Roman tomb ornamented with depictions of the Muses and an interesting collection of South American mummies.