Since I was looking for the same information here's what I found:
RCA Dome , Home of the Indianapolis Colts
Georgia Dome , Home of the Atlanta Falcons
Cowboy Stadium (retractable roof) , Home of the Dallas Cowboys
Ford Field , Home of the Dtroit Lions
Metrodome , Home of the Minnesota Vikings
Louisiana Superdome , Home of the New Orleans Saints
Edward Jones Dome , Home of the St. Louis Rams
Reliant Stadium (retractable roof) , Home of the Houston Texans
University of Phoenix Stadium , Home of the Arizona Cardinals
Quest field (retractable roof) , Home of the Seattle Seahawks
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Since I was looking for the same information here's what I found:
RCA Dome , Home of the Indianapolis Colts
Georgia Dome , Home of the Atlanta Falcons
Cowboy Stadium (retractable roof) , Home of the Dallas Cowboys
Ford Field , Home of the Dtroit Lions
Metrodome , Home of the Minnesota Vikings
Louisiana Superdome , Home of the New Orleans Saints
Edward Jones Dome , Home of the St. Louis Rams
Reliant Stadium (retractable roof) , Home of the Houston Texans
University of Phoenix Stadium , Home of the Arizona Cardinals
Quest field (retractable roof) , Home of the Seattle Seahawks
12-10
there are 20 stadiums with natural grass left
Astrodome in Houston Texas
It is called The Pantheon
one guy went to all 30 mlb stadiums in 30 days!