![The 1900-year-old Pantheon which features the world's largest unreinforced concrete dome. At noon on 21 April (traditional date of birth of Rome), the sun's ray through the oculus would strike the entrance The 1900-year-old Pantheon which features the world's largest unreinforced concrete dome. At noon on 21 April (traditional date of birth of Rome), the sun's ray through the oculus would strike the entrance](https://preview.redd.it/the-1900-year-old-pantheon-which-features-the-worlds-v0-1wdfe78okjna1.jpg?auto=webp&s=f8225808e1fc8dc9d05d6e957408da8311d8ef56)
The 1900-year-old Pantheon which features the world's largest unreinforced concrete dome. At noon on 21 April (traditional date of birth of Rome), the sun's ray through the oculus would strike the entrance
![The Pantheon dome with its oculus, Rome Wall Art, Canvas Prints, Framed Prints, Wall Peels | Great Big Canvas The Pantheon dome with its oculus, Rome Wall Art, Canvas Prints, Framed Prints, Wall Peels | Great Big Canvas](https://static.greatbigcanvas.com/images/singlecanvas_thick_none/trigger-image/the-pantheon-dome-with-its-oculus-rome,1936329.jpg?max=800)
The Pantheon dome with its oculus, Rome Wall Art, Canvas Prints, Framed Prints, Wall Peels | Great Big Canvas
![Dome Oculus Pantheon, Rome, Italy. Rebuilt by Hadrian in 118 to 125 AD Became oldest Roman church in 609 AD. Oculus, hole, provides only light Stock Photo - Alamy Dome Oculus Pantheon, Rome, Italy. Rebuilt by Hadrian in 118 to 125 AD Became oldest Roman church in 609 AD. Oculus, hole, provides only light Stock Photo - Alamy](https://c8.alamy.com/comp/2GJ86K0/dome-oculus-pantheon-rome-italy-rebuilt-by-hadrian-in-118-to-125-ad-became-oldest-roman-church-in-609-ad-oculus-hole-provides-only-light-2GJ86K0.jpg)
Dome Oculus Pantheon, Rome, Italy. Rebuilt by Hadrian in 118 to 125 AD Became oldest Roman church in 609 AD. Oculus, hole, provides only light Stock Photo - Alamy
![Inside the Pantheon in Rome, Italy looking up at the oculus (hole) in the ceiling and it's geometric dome design Stock Photo - Alamy Inside the Pantheon in Rome, Italy looking up at the oculus (hole) in the ceiling and it's geometric dome design Stock Photo - Alamy](https://c8.alamy.com/comp/KKM34J/inside-the-pantheon-in-rome-italy-looking-up-at-the-oculus-hole-in-KKM34J.jpg)
Inside the Pantheon in Rome, Italy looking up at the oculus (hole) in the ceiling and it's geometric dome design Stock Photo - Alamy
![Pantheon dome, central oculus, Pantheon by Marcus Agrippa, Roman temple, Piazza della Rotonda square, Stock Photo, Picture And Rights Managed Image. Pic. XN3-3258725 | agefotostock Pantheon dome, central oculus, Pantheon by Marcus Agrippa, Roman temple, Piazza della Rotonda square, Stock Photo, Picture And Rights Managed Image. Pic. XN3-3258725 | agefotostock](https://previews.agefotostock.com/previewimage/medibigoff/fff2df1ef404e18ac337f80108210836/xn3-3258725.jpg)