Roman skylight

In Ancient Rome a skylight was known as an oculus, the Latin name for eye. The skylights were often round or oval and covered with glass or lapis specularis – and sometimes completely unglazed.  One of the most famous skylights from Ancient Rome is located in the Pantheon in the city of Rome and is from around 120 AD. In the dome you can observe dramatic effects of light and shadow created by the sun that enters through the skylight.