Friday, 2 October 2026

How the Vatican site changed from the Circus of Caligula to St Peter’s Basilica

Four aerial reconstructions of the site: the Circus of Caligula and Vatican Necropolis in the 1st and 2nd centuries, St Peter’s Basilica in the 4th and 21st.

The Circus of Caligula Gradually Becomes an Elegant Vatican.

A marvellous infographic showing the evolution of the site on which St Peter's Basilica was built in the fourth century, and which acquired its present appearance at the end of the sixteenth century thanks to Michelangelo

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