One Glorious Sunday Morning We Visited Panteão Nacional in Lisbon

The Church of Santa Engrácia is a 17th century monument of the city of Lisbon, in Portugal. In the 20th century the church has been converted into the National Pantheon (Panteão Nacional), in which important Portuguese personalities are buried. It is located in the neighbourhood of Alfama, close to another important Lisbon monument, the Monastery of São Vicente de Fora. [...]
The first church dedicated to the Saint was sponsored by Princess Maria, daughter of King Manuel I, around 1568. In 1681, building of the current church began after previous structures collapsed. The author of the new design was João Antunes, royal architect and one of the most important baroque architects of Portugal.
Building work proceeded from 1682 through 1712, when the architect died. King John V lost interest in the church, concentrating his resources in the gigantic Convent of Mafra. The church was left unfinished until the 20th century, so that Obras de Santa Engrácia (lit. Saint Engrácia's works) has become a Portuguese synonym for long unfinished works. Eventually a dome was added, whereupon the church was reinaugurated in 1966.

Excerpt from the Wiki entry: here.
More shots as taken by me: here.