Canterbury Cathedral on Twitter: "Did you know it's #IronworkThursday? This afternoon we'll be looking at just a few of the many examples of amazing #ironworking at the Cathedral - starting with the
![Pantheon, view looking up near the inner wall, showing oculus window, dome and coffers, built under Emperor Hadrian (118-25 CE Stock Photo - Alamy Pantheon, view looking up near the inner wall, showing oculus window, dome and coffers, built under Emperor Hadrian (118-25 CE Stock Photo - Alamy](https://c8.alamy.com/comp/P1433D/pantheon-view-looking-up-near-the-inner-wall-showing-oculus-window-dome-and-coffers-built-under-emperor-hadrian-118-25-ce-P1433D.jpg)
Pantheon, view looking up near the inner wall, showing oculus window, dome and coffers, built under Emperor Hadrian (118-25 CE Stock Photo - Alamy
![Close up of oculus window at Fairfax House Georgian Townhouse Museum and York Civic Trust Offices Castlegate York North Yorkshire England UK Stock Photo - Alamy Close up of oculus window at Fairfax House Georgian Townhouse Museum and York Civic Trust Offices Castlegate York North Yorkshire England UK Stock Photo - Alamy](https://c8.alamy.com/comp/CNMTTW/close-up-of-oculus-window-at-fairfax-house-georgian-townhouse-museum-CNMTTW.jpg)
Close up of oculus window at Fairfax House Georgian Townhouse Museum and York Civic Trust Offices Castlegate York North Yorkshire England UK Stock Photo - Alamy
![15. OCULUS WINDOW, ROUND-ARCHED HALF-WINDOW, ROUND-ARCHED CASEMENT WINDOW, AND LOW, ROUND-ARCHED DOOR, THIRD FLOOR, TOWER - Rose Hill, Woods Road, Tivoli, Dutchess County, NY | Library of Congress 15. OCULUS WINDOW, ROUND-ARCHED HALF-WINDOW, ROUND-ARCHED CASEMENT WINDOW, AND LOW, ROUND-ARCHED DOOR, THIRD FLOOR, TOWER - Rose Hill, Woods Road, Tivoli, Dutchess County, NY | Library of Congress](http://tile.loc.gov/storage-services/service/pnp/habshaer/ny/ny0100/ny0195/photos/116222pv.jpg)