T-10 Barcelona: The prohibited Zone
The T-10 is a ticket for the public transportation system in Barcelona and a quite boring artefact of reality to write about.
But if the magnetic stripe on your T-10 gets damaged you can change it to be able to use the remaining trips on it.
I did that and what I got was even more than I expected: the access to the prohibited zone of Barcelona! – now I only have to find the entrance ;)
