The Seven Church Walk is traditionally done on Wednesday of Holy Week.
There is also a Seven Churches tour in Turkey that visits all seven of the Christian churches mentioned in the Book of Revelations, including the church at Ephesus.
Guidebooks to Rome
Guidebooks have existed since Ancient times. A periplus was a manuscript listing ports and coastal landmarks, in order and with approximate intervening distances, that the captain of a vessel could expect to find along a shore. An itinerarium was an Ancient Roman road map in the form of a showing cities, villages (vici) and other stops, with the intervening distances.
The first such guidebooks for Medieval Rome were compiled in the 12th century to address the needs of travelers to Rome. The Seven Pilgrim Churches of Rome are listed in the following order in the guide by Franzini (1595): San Giovanni Laterano, St Peter's, San Paolo fuori le mura, Santa Maria Maggiore, San Lorenzo fuori le mura, San Sebastiano, and Santa Croce in Gerusalemme. Giovanni Baglione in his book list nine major churches of Rome, adding somewhat peculiarly the church of Santa Maria Annunziata dei Gonfalone and the trio of churches known once as alle Tre Fontane, and located at the site of St Paul's martyrdom: Santi Vincenzo e Anastasio alle Tre Fontane, Santa Maria Scala Coeli and San Paolo alle Tre Fontane.