5 hidden sundials or meridians in Rome

1) Castel Sant'Angelo

In the central parapet of Castel Sant’Angelo, just above the bridge by the same name, there’s a sundial etched on the stone balustrade overlooking the Tiber River. It’s believed to have been used to synchronise a mechanical clock that used to rest just above this opening until the castle was restored in 1901.

Castel Sant'Angelo

Lungotevere Castello 50

+39 (0)6 681 9111

https://castelsantangelo.com

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