Station days were days of fasting in the early Christian Church, associated with a procession to certain prescribed churches in Rome, where the Mass and Vespers would be celebrated to mark important days of the liturgical year. Although other cities also had similar practices, and the fasting is no longer prescribed, the Roman churches associated with the various station days are still the object of pilgrimage and ritual, especially in the season of Lent.

The Basilica of Saints John and Paul on the Caelian Hill is an ancient basilica church in Rome, located on the Caelian Hill. It was originally built in 398.