In Rome, the inscriptions of SPQR (Senatus Populusque Romanus) can be spotted at every turn, even adorning sewer manholes. Interestingly, they vary in appearance, even when located on the same street.
For some historical context, here’s a quote from Wikipedia (thanks to
@salvador_p_ for the insight): “During the regime of Benito Mussolini, SPQR was emblazoned on a number of public buildings and manhole covers in an attempt to promote his dictatorship as a ‘New Roman Empire’.”
Rome, Italy.