The Sanctuary of Our Lady of Penha features a 17th-century Baroque chapel, consisting of a single nave, a chancel, and a bell tower. Inside, the frescoes are a highlight.

The Porta da Devesa dates back to the 13th and 14th centuries and forms an archway over Rua 5 de Outubro. Its name comes from the fact that it separated the town proper from the fertile countryside that followed it at the time, or even because it was the terminus of that same town.

Founded in 1984 by the Lourinhã Ethnology and Archaeology Group, the Lourinhã Museum boasts the largest collection of Upper Jurassic dinosaur fossils in the Iberian Peninsula and one of the most important in the world.

The National Monument classification covers the former Convent of Santo António da Lourinhã, including the Church of Santo António, also known as the Church of the Convent of Santo António da Lourinhã and the Church of Our Lady of the Annunciation. The monument is in Mannerist, Baroque, Rococo, and Neoclassical styles. The decoration is primarily Baroque in inspiration, except for the altarpieces, which are Neoclassical.

A Gothic temple whose decorative design extends beyond the church's structure. The main façade features a portal topped by a rose window. The three-nave interior features eight arches supported by columns with capitals decorated with phytomorphic motifs. A highlight is the Gothic-style holy water font.

A small, bastioned fort with a regular plan, considered an important example of 17th-century military architecture. Built after restoration, it has remained unchanged to this day. It was part of the fortified line that runs from Peniche to Cascais and the mouth of the Tagus River.

Conventual church that belonged to the Franciscan Convent, founded in 1598. The interior features a single nave covered by a barrel vault and decorated with 18th-century tile ashlars. Of particular note are a 16th-century painting, an 18th-century carved altarpiece, a 1601 marble parietal tomb, and the ornate pulpit.

The municipality of Lourinhã has many windmills that, even if not used for agricultural purposes, are worth a visit. In Moita de Ferreiros, five restored windmills have been converted into cafés and bars, adding to the landscape's beauty.

Religious architecture comprises side chapels, a main chapel, two sacristies, and a bell tower. The façade is whitewashed with masonry finishes. The door is surmounted by three windows, the central one being rectangular and featuring a balcony. At the top is a niche with the figure of Saint Peter. Of note is the sword alluding to the cult of the Holy Constable. The interior preserves important elements: carved side altarpieces in the National and Neoclassical styles, and the main altar and side altars in the Neogothic style.

An observatory built in 1882 that focuses on mountain forecasting and research. Inside, all the instruments used for this purpose are located.