Plizio Visual Lab
Southern Wall Slope
The Southern Wall Slope at the Vatican border wall is a steep descent marking the transition from the Vatican Hill to the lower-lying Prati district. Geomorphologically, this area is characterized by strong erosion processes and the artificial fortification of the walls protecting the hill from degradation. The terrain's inclination required massive retaining walls, of which the Leonine Walls are the most prominent. These architectural barriers serve not only security but also stabilize the slope against external urban pressure. Botanically, the southern slope is characterized by xerothermic vegetation, as strong solar radiation and the steep position cause the soil to dry out quickly. Despite dense development at the slope's base, the hill's natural contour remains clearly visible here. The area is an impressive example of the interplay between natural geology and monumental protective architecture.
- Location: Vatican
- Top sights: Sacristy · Saint Stephen of the Ethiopians · Cupola di San Pietro
Best time to visit & climate
The most pleasant time to visit is May, Jun, Sep.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °C | 7 | 8 | 10 | 14 | 18 | 23 | 26 | 26 | 21 | 17 | 12 | 8 |
| Rain mm | 73 | 77 | 69 | 56 | 57 | 34 | 26 | 26 | 70 | 82 | 114 | 92 |
📋 Practical info
Geography
Facts
- Retaining walls on the southern slope are sometimes over 15 meters high.
- The geological stratification includes Pleistocene sands and gravels.
- The slope forms the boundary with the Roman district of Prati.
- Xerophytic plants like cacti thrive on the sunny walls.
- Rainwater is drained via a complex system beneath the walls.
- Historically, the slope served as a natural obstacle against attackers.
Explore nearby
Notable places around
Route planner — Car & Motorhome
Where do you start? We build the route here, with stops and country notes along the way.
© OpenStreetMap contributors · OpenRouteService
Sights in the town Southern Wall Slope (10)
Dome of Saint Peter
Viewpoint atop St. Peter's dome, offering panoramic views of Rome.
Saint Peter's Basilica
Major church in Vatican City, built over Saint Peter's tomb.
Chiesa di Santa Maria della Pietà⛪ church
Church in Vatican City, dedicated to Our Lady of Sorrows.
Arch of the Bells
Gateway on the north side of St. Peter's Square, entrance to Vatican.
Pauline Chapel
Chapel in the Apostolic Palace, painted by Michelangelo.
St Mary's Church
Church building in Vatican City, dedicated to Saint Mary.
Sistine Chapel
Chapel in the Apostolic Palace, famous for Michelangelo's frescoes.
Sights nearby
Frequently asked questions
Where is the Southern Wall Slope located?
Is this area public?
What do you see at the southern wall?
Is there special vegetation there?
How steep is the slope?
Southern Wall Slope: where is it located?
Southern Wall Slope: what is there to see?
Southern Wall Slope: when is the best time to visit?
Southern Wall Slope: why is it worth visiting?



















