As the oldest major professional sports league in the world, Major League Baseball (MLB) is full of history. The MLB is currently made up of 30 teams, with 29 in the United States and 1 in Canada. But teams have moved, changed names, and even folded over the years. As a result, the locations we know today aren’t always the same as the past.

Nearly 80 MLB stadiums have been constructed that remained open after 1950. Some current fields are over a century old, though many are retired and have been repurposed as malls or parking lots. Additionally, some MLB franchises have faced multiple stadium changes, all of which we’ll find out on the map below.

View MLB Stadiums in a full screen map

Oldest MLB Stadiums Still In Use

Of the 76 professional baseball stadiums ever constructed in the U.S. and Canada, the MLB only needs 30 at any given time for 30 teams (at least until the next expansion era comes along). The stadiums currently in-use range in age, with some having opened their doors as recently as 2020 to several as old as 1912. So let’s highlight the oldest MLB stadiums currently being used in the table below:

Stadium	Opened
Fenway Park	1912
Wrigley Field	1914
Dodger Stadium	1962
Angel Stadium	1966
RingCentral Coliseum	1966
Kauffman Stadium	1973
Rogers Centre	1989
Tropicana Field	1990
Guaranteed Rate Field	1991
Oriole Park at Camden Yards	1992

Fenway Park, home of the Boston Red Sox, is the oldest MLB stadium used today. Opened in 1912, the stadium can hold up to 37,755 baseball fans (sort the map above by “Capacity” for the largest and smallest MLB fields currently in-use).

Just two years later, the slightly larger Wrigley Field finished construction. Today, up to 41,649 people can continue watching the Chicago Cubs play America’s pastime in the ancient stadium. Yet, Wrigley Field isn’t the only older stadium still standing in Chicago, Illinois. Though opening much later in 1991, Guaranteed Rate Field is in the older half of stadiums in use. That classification means there are many more (20) newer stadiums built between 1994-2020. Group the map by “Opened” to see for yourself.

After Wrigley in 1914, it took nearly 50 years for the next MLB stadium (that’s still used by the league today) to be constructed. However, that’s because many of the oldest MLB stadiums are no longer in use or have been turned into homeless shelters, other sports stadiums, or more.

Where Are Former MLB Baseball Fields Now?

In addition to the current MLB stadiums, 45 former fields closed more recently (after 1950). The oldest of these opened its doors in 1881, though that’s not even the most interesting thing about these former MLB stadiums.

While many former stadiums were remodeled and now are spaces for sports other than baseball—or parking lots—just as many have been turned into malls, hospitals, and churches.

• Shopping
  • Seals Stadium
  • Sick’s Stadium
  • Metropolitan Stadium
• Streets
  • Arlington Stadium
  • Athletic Park
• Hospitals
  • Griffith Stadium
  • Wrigley Field
• Closed but still standing
  • Houston Astrodome
  • RFK Memorial Stadium
• Buildings
  • Crosley Field
  • Polo Grounds III

Most notable among these former MLB stadiums is the Metropolitan Stadium, which closed in 1981. It’s now home to Mall of America, the largest mall in the U.S., though remnants of the MLB baseball field remain there to this day. The mall’s amusement park contains a plaque at the former location of home plate. Additionally, a stadium seat remains in its same location.

Yet Metropolitan Stadium isn’t even the only former stadium of the Minnesota Twins. Altogether, they’ve gone through three stadiums, as we’ll see when we cover the MLB teams with the most stadium changes.

MLB Teams with the Most Stadium Changes

What all these MLB stadiums have in common—regardless of whether they’re currently used or have been turned into a mall—is that they’ve all been the meeting place for professional baseball teams and fans alike. However, some franchises have gone through more stadium changes than others, as shown in the table below.

Team	# of stadium changes
Toronto Blue Jays	4
Texas Rangers	3
San Francisco Giants	3
Pittsburgh Pirates	3
Montreal Expos	3
Minnesota Twins	3
Cincinnati Reds	3
Atlanta Braves	3

While seven teams have faced three stadium changes, the Toronto Blue Jays should join the Hall of Fame as the team that has bounced around the most stadiums. Rogers Centre may currently be home to the Toronto Blue Jays, but it’s far from the first. Interestingly enough, of the four stadiums where the Toronto Blue Jays have played, two were located in cities… other than Toronto.

This is because the Canadian professional baseball team had to both use TD Ballpark in Dunedin, Florida and Sahlen Field in Buffalo, New York from 2020-2021 due to COVID-19 border restrictions. The Blue Jays also previously used Exhibition Stadium, before it closed in 1989… which, of course, was located in Toronto, just a few miles away from Rogers Centre.

Additionally, Rogers Centre is considered one of the 500 Largest Stadiums in the World. See the rest yourself when you group the map by “Main use” and opt for baseball.

April showers bring May flowers, but what the heck happens in March? We suppose it brings…sports fans.

While the occasional Major League Baseball Opening Day takes place during the month, March is best known for college basketball. There’s the men’s tournament, aptly named March Madness, along with the NCAA Division I women’s basketball tournament.

As of 2022, 40 single-elimination tournaments have been played since 1982. So let’s jump into winners, appearances, and winning percentages on the map below.

View Women’s NCAA March Madness in a full screen map

NCAA Women’s Basketball Winners

There are 348 teams that participate in NCAA women’s basketball. Of these, just over 60 get to compete in the championship tournament each year. Less have won—even fewer still more than once, as you’ll see on the list below.

• UConn (11)
• Tennessee (8)
• Stanford (3)
• Baylor (3)
• Louisiana Tech (2)
• Notre Dame (2)
• South Carolina (2)
• USC (2)

Just eight teams can say they’ve earned championship rings more than once—though exactly how many times they’ve won varies. Just like the men’s team, UConn has the most wins as of 2022.

The Huskies’ 11 championship wins are three ahead of even the second-best Tennessee team—more than most teams have ever won in total. Even more than all those wins, UConn is also notable for its four-time winning streak from 2013-2016 and for appearing in the semi-finals in 14 consecutive tournaments, as we’ll see next.

Women’s Final Four Appearances

Wins aside, with 348 teams vying for just over 60 tournament spots, making the semi-finals is notable in its own right, especially if done multiple times. The following table contains women’s NCAA teams with five or more final four appearances.

School	Final Four Appearances
UConn	22
Tennessee	18
Stanford	15
Louisiana Tech	10
Notre Dame	9
Maryland	5
LSU	5
Georgia	5

UConn has the most women’s final four appearances, including 14 in a row between 2008-2022, which should come as no surprise, considering their wins. Similarly, Tennessee and Standford’s 18 and 15 semi-final participation is just as unsurprising. Tennessee, while notably absent from the final four since their 2008 win, previously saw multiple streaks in which they made the semi-finals four times in a row: 1986-1989, 1995-1998, and 2000-2008.

Stanford, though with fewer appearances than Tennessee, has appeared more recently in the final four. A semi-finalist in 2022, they also won in 2021. However, Stanford and the tournament do have a decently long history, as their first final four appearance was a win in 1990.

This is where the similarity between the winners discussed in the previous section and appearances ends. Baylor followed Stanford in wins, yet in appearances, Louisiana Tech rankers higher, even with only two wins. This makes us wonder about the winning percentage of the Lady Techsters and others from the map.

NCAA Women’s Division I Basketball Champions’ Winning Percentage

With winners and Final Four appearances completed, we can now look to Finals vs. Champions to determine each team’s winning percentage. The table below shows this calculation for the 15 teams with at least one win under their belt:

Team	Wins	Finals Appearances	Winning %
Baylor	3	3	100.00%
Maryland	1	1	100.00%
North Carolina	1	1	100.00%
South Carolina	2	2	100.00%
Texas	1	1	100.00%
Texas A&M	1	1	100.00%
Texas Tech	1	1	100.00%
UConn	11	12	91.67%
USC	2	3	66.67%
Tennessee	8	13	61.54%
Stanford	3	5	60.00%
Old Dominion	1	2	50.00%
Purdue	1	2	50.00%
Louisiana Tech	2	6	33.33%
Notre Dame	2	7	28.57%

Seven teams hold perfect records… Of course, that’s a bit easier for the five with just one winning appearance. However, Baylor and South Carolina have perfect winning percentages with multiple Finals appearances.

However, the most notable may once again be UConn. With a winning percentage of 91.67% across 12 appearances, it just goes to show how seriously the franchise takes basketball—both women’s and men’s.

Speaking of, be sure to check out the Men’s NCAA Tournament Map: Who Has the Most Wins?

Parades, festivals, and pub crawls may be the norm each year on Saint Patrick’s Day. But the March 17th holiday is also a religious one, originally intended to honor the c. 461 death of a patron saint of Ireland, Saint Patrick.

Regardless of how you celebrate, the cities that turn up the most on Saint Patrick’s Day may be those with related names—and they’re not only in Ireland.

While there are no cities named “Leprechaun” (unfortunately), there are 101 cities with names like Shamrock, Clover, Luck, and Ireland located across countries from America to Zimbabwe, as you’ll see on the map below.

View St. Patrick’s Day Cities in a full screen map

Dublin, Shamrock, & Other Popular City Names

There are 101 cities on the map, yet we included just 10 unique Saint Patrick’s Day-related names. That means that while these cities are located in different countries, continents, and even hemispheres… the one thing they have in common is their name:

• Dublin – 24 cities
• Shamrock – 13
• Limerick – 11
• Clover – 10
• Rainbow – 9
• Patrick – 8
• Ireland – 8
• Lucky – 7
• Luck – 6
• Saint Patrick – 5

Dublin is by far the most popular Saint Patrick’s Day-themed city name, with 24 cities around the world sharing the name of Ireland’s capital and largest city.

The majority (18) of the other Dublins are located throughout the U.S., especially in the East. You’ll find many of them in the Southeast: Alabama, Arkansas, Florida, Georgia, Kentucky, Mississippi, North Carolina, and Virginia. Meanwhile, there are also Dublins in Northeastern states like Maryland, New Hampshire, New York, and Pennsylvania.

Many of these U.S. Dublins were established by Irish settlers, hence the name. They may be more concentrated in the East as at the time of Irish migration to the U.S., port cities like Pennsylvania and New York were quite popular.

There is also a Dublin in Australia, Sierra Leone, and two in Belarus.

On the same continent as the U.S. is Limerick, Saskatchewan in Canada.

You can see the rest of the cities named Limerick, Shamrock, and the others when you sort the map above by City.

Countries with the Most St. Patty’s Day Cities

While the U.S. is home to 18 Dublins, it’s also home to 61 more cities with Saint Patrick’s Day-related names, for a little over 78% of the total. This includes all of the cities on the map named Shamrock and Clover.

The most (six) are concentrated in Ohio: Clover, Dublin, Ireland, Limerick, Rainbow, and Saint Patrick. This is followed by Texas (Dublin, Ireland, Patrick, Rainbow, and Shamrock) and Pennsylvania (Dublin, Clover, Limerick, Lucky, and Shamrock) with five each.

Meanwhile, more countries than the U.S. have multiple Saint Patrick’s Day-themed cities. Not surprisingly, Ireland has four: two large cities named Dublin and Limericks, along with two smaller towns with the two same names.

Another European country, Slovakia, has three cities also of the same name: Lucky in Banska Bystrica, Lucky in Kosice, and Lucky in Zilina.

That leaves Lesotho, Isle of Man, Belarus, and Australia all with two. Additionally, Albania, Canada, Czech Republic, Poland, Sierra Leone, Ukraine, and Zimbabwe are home to one.

You can be festive regardless of whether you live near a holiday-themed city. One way to get into the spirit is through color—and then why not put it on a map?

Change Your Map Marker Colors

Maps can certainly help you gain geographic insights into your data. But that’s not the only pro of mapping. Most data has a topic or theme, like our Saint Patrick’s Day-themed cities or the Olympics. You can maintain your map’s cohesive narrative by customizing your map marker color.

If you’re mapping St. Patty’s Day data, it would be fitting to change the marker colors to various shades of green, gold, and all the colors of the rainbow. There are many similar cases in which your marker color can help in conveying your data.

See how BatchGeo gives you control over the story you tell with your location data, right down to how they’re styled.