Temple of Claudius built
54 CE.
Shown on the map at 41.888°, 12.493°.
The Temple of Claudius (Latin: Templum Divi Claudii), also known in an abbreviated form as the Claudium, was an ancient Roman temple that covered a large area of the Caelian Hill in Rome, Italy. It housed the imperial cult of the emperor Claudius, who was deified after his death in 54 AD.
Text from the Wikipedia article Temple of Claudius, licensed CC BY-SA 4.0.