The "(7 + 5)" in my name stands for the number current ballparks + defunct ballparks that I've visited. To wit:
Target Field, Minneapolis
Miller Park, Milwaukee
US Cellular Field, Chicago
Busch Stadium, St. Louis
Kauffman Stadium, Kansas City
Citi Field, New York
AT&T Park, San Francisco
Metropolitan Stadium, Bloomington, MN
Candlestick Park, San Francisco
Shea Stadium, New York
Yankee Stadium (old), New York
Next ball park visit: Rangers Ballpark in Arlington, home of the Texas Rangers!
Wish list: I have yet to make it to Wrigley Field. And I've been around Fenway, but never inside.