Fans pile into baseball stadiums to watch their favorite teams compete in America's beloved game, but they also go to ballparks to be entertained.

And some entertainment doesn't necessarily have to be related to the game itself.

In Milwaukee the game is as interesting as the Sausage Race. In D.C. they race presidents, and in Philly it's pierogies that fight to the finish.

In New York, no game would be complete without the playing of "New York, New York." In Boston, it's "Sweet Caroline" that's belted out at Fenway.

From races, to songs, to ballpark personalities, take a tour of some of baseball's most unique offerings.

Ballpark Races

Milwaukee Brewers
Milwaukee's infamous Sausage Race began as a cartoon that was played on the giant scoreboard. Eventually, during select games, the cartoon was replaced with a live race in the ballpark between the giant sausages. Then, in 2000, the virtual race was completely thrown out and the actual sausages raced during each game. The race originated with three sausages -- Bratwurst, Polish Sausage and Italian Sausage -- and then the Hot Dog was added in the late 1990s. In 2007 they added Chorizo, a spicy Mexican sausage.

Pittsburgh Pirates
A la the Sausage Race, in Pittsburgh the fans are entertained by the Pierogie Race. Contested between Jalapeno Hannah, Cheese Chester, Sauerkraut Saul and Oliver Onion, the race begins as an animated competition, then the Pierogies enter the stadium for a live finish.

Washington Nationals
The Washington Nationals feature the Presidents Race in the fourth inning of every home game. The race -- between Mount Rushmore residents George Washington, Abraham Lincoln, Thomas Jefferson and Teddy Roosevelt -- started as a computer animation, but in 2006 it was turned into a live event.

Home Run Celebrations

New York Mets
At Shea Stadium, when a Mets player hits a home run a big red apple emerges from a top hat in the outfield.

Milwaukee Brewers
Bernie Brewer celebrates each Milwaukee home run by making a trip down a giant slide.

San Francisco Giants
Fans hang out in McCovey Cove -- named after famed Giants first baseman Willie McCovey -- in hopes of catching a home-run ball that has soared out of AT&T Park and landed in the water.

Sing Alongs

New York Yankees
The sounds of Frank Sinatra signal the end of each Yankees home game as the team plays "New York, New York" after each home contest. The Yankees also play "God Bless America" during the seventh-inning stretch, a ritual that started after Sept. 11, 2001.

Boston Red Sox
One of Boston's newer traditions is the playing of "Sweet Caroline." Per request of the team's owners in 2002, the song is played during the eighth inning of each game.

Chicago Cubs
Harry Caray used to lead the Chicago Cubs fans in the singing of "Take Me Out To The Ball Game" during the seventh-inning stretch. Since his death, the Cubs have invited various people to lead the crowd in the singing of the song.

Ballpark Personalities

Chicago Cubs
Ronnie "Woo-Woo" Wickers is one of the best-known Cubs fans. A former homeless man in Chicago, Ronnie Woo-Woo has attended more than 3,000 Cubs games, cheering on the team with his "Cubs Woo, Cubs Woo," chant.

L.A. Dodgers
Vin Scully has spent 58 seasons covering the Dodgers -- both in Brooklyn and Los Angeles -- making him the longest-running broadcaster with a single club in professional sports history.

Texas Rangers
The Texas Rangers fan John Lanzillo, a.k.a. Zonk, annoys opposing batters with his repeated beating of a snare drum.

Minnesota Twins
Climbing the stairs of the Metrodome at Twins home games is Wally the Beer Man -- a recognizable beer vendor who has become one of Minnesota's most beloved sports personalities.