Beleive it or not one of the most fascinating Baseball Museums is the one at Camden Yards.

I would say the Museum concists of from what I remember - 80% Baseball Game Used 10% Baseball Vintage/ Autograph & 10% Baltimore Ravens Game Used.

I could be wrong but I was there about a year and a half ago so thats how I remmeber it but I can tell you for sure I was blown away by how much Baseball Game Used they had on display.