The Aqueduto de Óbidos, also known as the Aqueduct of Santa Maria, was built in the 16th century to supply water to the town and its castle. The aqueduct is an impressive feat of engineering, with a length of over three kilometers and a height of up to 30 meters in some places. It was built using a combination of stone and brick, and features 34 arches that span across the valley below.

Today, the Aqueduto de Óbidos is a popular tourist attraction and an important landmark of the town. Visitors can walk along the top of the aqueduct and enjoy views of the surrounding countryside, or explore the historic town of Óbidos and its many other attractions.

The primary gateway to the village of Óbidos is known as Porta da Vila. This double gate boasts an interior adorned with 18th-century tiles and leads visitors directly to Rua Direita, the village’s main street. Above the entrance, you’ll find an inscription that reads “The Virgin Our Lady was conceived without original sin.”

King D. João IV ordered the construction of this gate as a gesture of gratitude for patronal protection during the restoration of independence in 1640. The gate’s interior houses the chapel-sanctuary of Nossa Senhora da Piedade, the village’s patron saint. The baroque veranda and blue and white tiles within the chapel date back to the mid-1740s and 1750s and feature an allegorical representation of the passion of Christ.

Obidos castle has a long history, with construction dating back to the mid 1st century during the Roman era. However, it was only completed during the occupation by the Moors. In 1148, the fortress was conquered by the first king of Portugal, Dom Afonso Henriques, who also took control of the village. Later in 1210, the town of Obidos was gifted to Queen Urraca by King Afonso II, and from then on, it became a favored location of the Queens of Portugal. As a result, Obidos earned the nickname “Vila das Rainhas” (town of the Queens).

Praça de Santa Maria is the main square  of  the town. It is a picturesque and charming square with a central fountain and surrounded by colourful houses and cafes. The square is often bustling with activity and is a popular spot for tourists to relax and take in the sights and sounds of the town.

In the centre of the square is a statue of King D. Afonso Henriques, the first king of Portugal, who conquered the town from the Moors in the 12th century. The statue is a popular spot for taking photos.

The church facing the square is the Igreja de Santa Maria, a small church largely rebuilt in the 1600s, with a painted wooden ceiling & a notable carved tomb.

The Municipal Museum of Óbidos is housed in a former 16th-century mansion. The museum aims to preserve and promote the cultural heritage of Óbidos and the surrounding region.

The museum has a collection of archaeological artefacts, including Roman and medieval ceramics, as well as historical documents and works of art. Among the highlights of the museum’s collection are the 17th-century paintings of Josefa de Óbidos, one of the most important Baroque artists in Portugal, who was born in the town.

The museum is divided into several thematic areas, including the history of Óbidos, the role of the town in the Portuguese Restoration War, and the traditions and customs of the region. There are also temporary exhibitions that focus on various aspects of local culture, such as traditional handicrafts and folk art.

Visitors to the museum can also explore the building itself, which has been restored to its former glory, with its ornate ceilings and decorative tiles. There is also a garden with a small pond and a well, which provides a peaceful oasis in the heart of the town.