![Liz Crash on Twitter: "there are a lot of pavement lights (glass pavers allowing natural light to basement levels) in central Melbourne. they were most popular before the advent of inexpensive electric Liz Crash on Twitter: "there are a lot of pavement lights (glass pavers allowing natural light to basement levels) in central Melbourne. they were most popular before the advent of inexpensive electric](https://pbs.twimg.com/media/EgUky2gVoAA-Ixd.jpg:large)
Liz Crash on Twitter: "there are a lot of pavement lights (glass pavers allowing natural light to basement levels) in central Melbourne. they were most popular before the advent of inexpensive electric
![People are only just realising what those tiny windows in the pavement are for but some still don't believe it | The Sun People are only just realising what those tiny windows in the pavement are for but some still don't believe it | The Sun](https://www.thesun.co.uk/wp-content/uploads/2023/03/glass-pavement-blocks-806644764.jpg)
People are only just realising what those tiny windows in the pavement are for but some still don't believe it | The Sun
![The Floor In This House Is Filled With Glass Circles That Allow Light To Pass Through To The Floor Below The Floor In This House Is Filled With Glass Circles That Allow Light To Pass Through To The Floor Below](http://www.contemporist.com/wp-content/uploads/2017/04/unique-floor-design-modern-interior-210417-207-01-800x420.jpg)