My guest is Gaizka Atxa, one of the founders of the Mr Pentland Club, a London-based fan club of Athletic Club de Bilbao. We discuss the long history of one of the most unique clubs in the world.

I'm joined by Liam Bambridge who, like me, was a keen groundhopper in Spain in the 1990s and still returns there today. We do a compare and contrast, majoring on Real Zaragoza, Real Madrid and FC Barcelona, as well as some clubs that were great in the 1990s but have sunk down the leagues.

Our guest is Chris Pidgeon, who has groundhopped across Spain.

We look at Spain's complex football league structure and discuss some of the best football travel experiences outside of La Liga.

Our guest is Chris Clements, the man behind EspañaEstadios.com - Stadiums of Spain.

We look at some of the classic big grounds - Bernabéu, Camp Nou, Mestalla, and the Seville grounds, plus some of the new grounds - the New San Mames and Wanda Metropolitano. We also discuss our favourite smaller grounds and ask why Spanish grounds aren't as stylish as, say, Italian grounds.