The Marriage of the Virgin (1503–1504) by Pietro Perugino - Public Domain Catholic Painting

The work represents the marriage of Joseph and the Virgin Mary. The high priest Zaccharie unites their hands, precisely in line with the open door in the temple of Jerusalem represented as an ideal architecture in the background. This octagonal building crossed right through by a rectangle of light and letting a glimpse of the landscape in the distance, symbolizes the theological horizon to which the two protagonists are promised.