There is only one MLB stadium that has a dome, and that stadium is Tropicana Field (Tampa Bay Rays). However, there are 6 stadiums that have a retractable roof. Those stadiums are Rogers Centre (Toronto Blue Jays), Chase Field (Arizona Diamondbacks), Safeco Field (Seattle Mariners), Miller Park (Milwaukee Brewers), and Minute Maid Park (Houston Astros). *Note-Marlins Ballpark (Miami Marlins) will have a retractable roof. Their stadium is currently under construction, and it is estimated to be finished in 2012.
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There are 7 stadiums that have the ability to be "domed". Stadiums with a fixed roof: Tropicana Field -Tampa Bay Rays Stadiums with retractable roofs: Chase Field - Arizona Diamondbacks Rogers Centre - Toronto Blue Jays Safeco Field - Seattle Mariners Miller Park - Milwaukee Brewers Minute Maid Park - Houston Astros Marlins Park - Miami Marlins Side Note: The Minnesota Twins used to play at a fixed roof stadium, the Hubert H. Humphrey Metrodome. However, they have since built a new outdoor ballpark, Target Field, which they have played in since 2010.
Click on the 'Capacities of MLB Stadiums' link on this page to learn the capacity of all 30 stadiums where MLB is played.
Currently, there are three if you include Toronto's Rogers Centre, which has a retractable roof. They are the Hubert H. Humphrey Metrodome, home of the Minnesota Twins (sadly no longer their home after 2009), Tropicana Field, home of the Tampa Bay Rays, and Rogers Centre, home of the Toronto Blue Jays. Former domed stadiums are the Astrodome, home of the Houston Astros from 1965-1999, Olympic Stadium, home of the Montreal Expos from 1977-2004, and the Kingdome, home of the Seattle Mariners from 1977-1999. Correct me if I'm wrong.
Click on the 'MLB Stadiums' link on this page to see a list of all stadiums where major league baseball is played.
Wrigley Field, Fenway Park
Currently, there are three if you include Toronto's Rogers Centre, which has a retractable roof. They are the Hubert H. Humphrey Metrodome, home of the Minnesota Twins (sadly no longer their home after 2009), Tropicana Field, home of the Tampa Bay Rays, and Rogers Centre, home of the Toronto Blue Jays. Former domed stadiums are the Astrodome, home of the Houston Astros from 1965-1999, Olympic Stadium, home of the Montreal Expos from 1977-2004, and the Kingdome, home of the Seattle Mariners from 1977-1999. Correct me if I'm wrong.
Yankees...by far
one guy went to all 30 mlb stadiums in 30 days!
In MLB, there are three stadiums still in use (2008 season) that would have to use artificial turf instead of grass: Minnesota, Tampa Bay, Toronto. These three stadiums are the last domes in use, and in the case of Minnesota and Tampa Bay there are plans to replace their stadiums in the next five years.
Construction on the park began in 1996 and was finished just before the Diamondbacks first season began in 1998. It was the third MLB stadium to have a retractable roof and first in the US (the other two were Toronto's SkyDome and Montreal's Olympic Stadium).