I often pass this place by car when I travel out of Highland Park, and on some Sundays, the place is absolutely bustling with activity. Biker guys are checking out the motorcycles outside being displayed, and I've seen some walk away with smiles because they bought a new Harley. There's music and food, and it's often really loud. Sometimes, it holds up traffic, but it's a nice gathering all together. Definitely worth seeing at least once, if just simply out of curiosity.