Palazzo San Pio X

Under the Lateran Treaty of 11 February 1929, Italy recognises the Holy See's full ownership of this property (Art. 13; Annex II). Art. 15 states that the property, «benché facenti parte del territorio dello Stato italiano» — although forming part of the territory of the Italian State — enjoys the immunities that international law grants to the headquarters of the diplomatic agents of foreign States. It is on Italian soil and visitors are subject to Italian law. The Holy See's enumeration names it as «il Palazzo Pio, dichiarato extraterritoriale nel 1979 … in sostituzione del Palazzo della Dataria», and excludes from that status the rooms that house the Auditorium Conciliazione. This guide publishes no compass directions for the building: Italian Wikipedia's article contradicts itself about which side of it faces what.