Many of these engravings came from my own memories and fantasies as I had great difficulty in finding images of these landmarks on line.
All of these engravings are done with a high speed diamond rotating tool on glass.
This image shows the engraving as they appear in daylight.
The engravings are protected by the metal frame over them. I can lean the bicycle on a rack with no issue with breakage of the glass panels.
I am able to straddle and ride the bicycle; I hardly feel the engravings against my legs while pedaling.