The construction of the Ajuda Palace began in 1796 during the reign of Queen Maria I of Portugal and was intended to serve as a royal residence. However, the palace was never fully completed during the monarchy due to various interruptions, including the Napoleonic invasions of Portugal in the early 19th century and subsequent financial constraints.

Despite its incomplete state, the Ajuda Palace was occasionally used as a royal residence by members of the Portuguese royal family, including Queen Maria II and King Luís I. However, the palace's primary function shifted over time, serving as a venue for state events, official receptions, and ceremonial functions.

- Architecture and decoration: 

The palace's design reflects the neoclassical style popular during the late 18th and early 19th centuries. It was initially designed by Portuguese architect Manuel Caetano de Sousa, who drew inspiration from classical Greek and Roman architecture. The façade features Ionic columns and a grandiose pediment, while the interior showcases ornate decorations and intricate details.

Its collections include remarkable works of goldsmithery, tapestry, furniture, painting, sculpture, porcelain, glass, engraving, and photography from various sources, mainly from the 18th and 19th centuries, making it one of the most important decorative arts museums in the country. Highlights include works by authors such as El Greco, Greuze, Géricault, and Stiler.

- Museum: 

The Ajuda National Palace was converted into a museum in the 20th century, opening its doors to the public in 1968. Visitors can explore the palace's lavishly decorated rooms, which have been preserved to showcase the splendor of royal life in the 19th century. The museum also hosts temporary exhibitions and cultural events.

Today, this museum is the only royal palace in Lisbon that can be visited and that still preserves its rooms with the authenticity of the 19th century.

In the same building, you can visit the Royal Treasure Museum, which houses the royal treasury with the jewels of the Portuguese crown and the goldsmithery used in civil and religious ceremonies, as well as the most imposing 18th-century European royal tableware.

 

Surrounding the palace is the Ajuda Botanical Garden (Jardim Botânico da Ajuda), which was originally established as part of the palace grounds. The garden features a diverse collection of plants, including exotic species from around the world, and provides a peaceful retreat for visitors to enjoy