We all know that during the 4th century the emperor Constantine constructed a Roman basilica over the grave of St. Peter. This was replaced during the renaissance with the current structure, as the old church had become structurally unsound during the interval.
A reconstruction of the old church, drawn in 1891, is here:
Image may be NSFW.
Clik here to view.
It would be interesting to know the authorities on which this drawing was based. Are there, indeed, old sketches of the basilica? There surely ought to be! And it was a Roman basilica, preserved intact, so should be of interest to classicists.
