Igreja de Santo António
This church, constructed in 1767, sits on the site where Lisbon's patron saint, Saint Anthony, was born. Although it's fairly compact, the interior is stunning, with ornately painted walls, abundant natural light, and stone carvings. The altarpiece on the side of the nave's gospel is thought to be from the 16th century, representing Saint Anthony (known as the "effigy of the Saint"), and locals still come to express their devotion.
