3D print St Peter's Basilica
A free, printable model of the basilica's ribbed dome and long nave, with the buildings, roads and green areas around it, generated from real map data in your browser.
Free, in your browser. Exports a slicer-ready 3MF.
About St Peter's Basilica
St. Peter's Basilica, formally the Papal Basilica of Saint Peter, is an Italian Renaissance church in Vatican City, an independent microstate inside the city of Rome, Italy. Plans for a replacement date to the 15th century, under Pope Nicholas V and later Pope Julius II. The new church was meant to take the place of Old St. Peter's Basilica, which the Roman emperor Constantine the Great had built in the fourth century. Construction of the present church began on April 18, 1506, and Pope Urban VIII dedicated it on November 18, 1626.
Donato Bramante, Michelangelo and Carlo Maderno were the principal designers, while Gian Lorenzo Bernini produced the piazza and fittings. By interior measure it is the biggest church in the world, and its central dome is among the largest anywhere. Visitors approach through St. Peter's Square, a forecourt made of an oval space and a trapezoidal one, both ringed by tall colonnades. The facade, with a giant order of columns, is reached by steps that hold two 5.55-meter (18.2 ft) statues of Saints Peter and Paul.
According to Catholic tradition, Saint Peter, the chief of Jesus's apostles and the first Bishop of Rome, is buried here, with his tomb directly below the high altar. Many popes, along with cardinals and bishops, have been interred there since the Early Christian period. Many count it among the holiest Catholic shrines, yet it is not the cathedral for the Diocese of Rome, nor the Catholic Church's mother church. The Archbasilica of Saint John Lateran holds those titles.
How it prints
Make this print opens the generator on a 600 m square around the landmark. Buildings print at close to true scale, so the landmark grows with the print size.
| Print size | Landmark height | Scale |
|---|---|---|
| 160 mm default | 37 mm | 1:3,750 |
| 200 mm | 46 mm | 1:3,000 |
| 256 mm | 59 mm | 1:2,344 |
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North
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East
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South
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West
- Ribbed dome and lantern
- The dome has fine ribs, a ring of arched drum windows and a small lantern topped by a cross. Print friendly adapts these thin parts to your print scale; Full detail keeps them, best on a larger print.
- Side domes and columned front
- Two small domes flank the main dome, and the front has rows of slim columns. Layers of 0.12 to 0.16 mm keep this vertical detail crisp.
- One piece with the ground
- St Peter's Basilica is joined to the ground in the exported file, and the four-side check found no floating parts, so nothing needs gluing.
- Pick the detail for your nozzle
- In the Buildings settings, set Landmark detail to Print friendly to adapt thin parts and small details to the print scale. Full detail keeps every modeled feature, for larger prints or a finer nozzle.
- Colors
- Buildings, roads, water and ground arrive as separate filament slots in the 3MF. St Peter's Basilica takes the building color.
- File format
- You get a 3MF for Bambu Studio, OrcaSlicer or PrusaSlicer. Any of them can save it as STL if you need one.
About this model
St Peter's Basilica is one of more than 2,300 landmark models in Mini Skyline. They are made with AI, and each one is checked from four sides in its real surroundings before release. Everything around it is built from OpenStreetMap and Overture map data. If you would rather print the shape from map data, turn off Landmark models in the Buildings settings.
Common questions
Is there a St Peter's Basilica STL I can download?
Mini Skyline builds the file for you in your browser and exports 3MF, which every major slicer opens. If you need an STL, open the 3MF in your slicer and export it from there.
How big can I print it?
Any print size from 40 mm across. St Peter's Basilica grows with the print: about 37 mm tall on the default 160 mm print. For a model larger than your printer bed, Project Mode splits the area into tiles.
Is it free?
Yes. Generation runs in your browser, with no account and nothing behind a paywall.
