Victorian Engineering & Public Works this week.
Strictly speaking, that would be anything built between 1837 to 1876, although anything built in that style from around that period will do.
Any sort of civil engineering, with the emphasis on the great public works of the time; water works, sewage works, dams and the like plus schools, hospitals and libraries.
Same as usual, interpret the theme any way you want, although I think this one may be a bit more specific than some.
Pictures must be taken between now and midnight on Sunday and show both your bike and the theme in one picture.
Edit to clarify;
I would consider a reservoir or library as a public work, because it was built for the greater good of all.
Railways and canals were built as commercial ventures, so don’t really qualify, unless you know otherwise.