I saw Court/Real/Royal Tennis for the first time when I visited the International Tennis Hall of Fame in Newport, RI in 1999.  It gave me some context for things like the Tennis Court Oath from the French Revolution.  Still, even watching it played for 10 minutes or so the notion of chases and galleries were pretty alien to me.  I would like to see this sport grow, but again I am not entirely sure what to make out of it either.  Check it out: