Poland had some really neat stuff. Some obviously illegal tagging, others clearly commissioned. View and enjoy.
Outside of Krakow

Snapped from a train outside Katowice.
Krakow

This guy was everywhere. I think I saw at least six of them.

Near the contemporary museum. This is a tunnel where cutouts in the ceiling are used to project Auschwitz

The Romani people seem to be the current pariahs of Europe. I don’t claim to know what this means in that context, but hey, font joke.

I especially like the doubledeer. Reminds me of the teleporter bit from the Simpsons (and follow-on gag).