In Anaheim, CA, a young fan stands outside Angels Stadium of Anaheim. The home plate gate entrance features a full-size brick infield and pitcher's mound.
Fans watch the game from the upper deck in right field at Busch Stadium in St. Louis, MO.
Recruits and graduates of the Marine Corps Recruit Depot in San Diego stand at attention before a game at Petco Park in San Diego, CA. At each home Sunday game, the Padres honor members of the military.
The huge windows and retractable roof create long shadows at Miller Park in Milwaukee, WI.
Lydia and Tony Jimenez kiss for the "kiss cam" on the jumbotron at Marlins Park in Miami, FL. They are frequently featured as the last couple and draw ravenous cheers from fans. Last year they attended all 81 games. They met in Puerto Rico and have been married 61 years.
Art, who has lived in Detroit for more than 30 years, collects bottles before a game at Comerica Park in Detroit, MI.
Tony Solis wears a chain with a medallion in the shape of the Astros logo that his dad purchased for his birthday. Minute Maid Park. Houston, TX.
Washington Nationals fans walk past a banner displaying a portion of the Nationals motto, "Nothing but Natitude," in Washington, D.C.
A man dressed as superman walks around Chase Field in Phoenix, AZ, occasionally stopping to give fans high fives and take pictures.
The Pittsburgh Pirates Pierogies race at the end of the 5th inning at PNC Park in Pittsburgh, PA.
Social worker Joy Aisha Bell, left, laughs with Joann Wilson, who was attending her first baseball game ever. Camden Yards, Baltimore, MD.
Safeco Field. Seattle, WA.
A young fan waits for an autograph in Boston, MA.
David has been an usher at Turner Field in Atlanta, GA for 16 years. He works in Aisle 116. He collects pins, including those from the U.S. Armed Services, and displays them on his uniform. He served in the Army, his brother served in the Navy and his son is a Marine.
Jay holds his son Luca up on his shoulders at Citi Field in New York, NY.
Fans try to get a ball from outfielder Hunter Pence before the start of the game.
From right, stilted jugglers Adam and Brian of the Cincinnati Circus Company walk from one outfield section to another at Great American Ball Park in Cincinnati, OH.
Emmet, right, and Dylan look on as the Indians score at Progressive Field in Cleveland, OH.
A vendor works the stands as relief pitcher Javy Guerra delivers to home plate at U.S. Cellular Field in Chicago, IL.
Dave Clarke holds his cigar at the Cuesta Rey Cigar Bar at Tropicana Field in Tampa, FL. Tropicana Field is the only MLB stadium with a cigar shop.
From left, Jessica, Tom, Linda, Turtle and Ray share a laugh on the outfield concourse at Globe Life Park in Arlington, TX.
Becky Goldrick, left, and Virginia Day, right, cool off at the outfield shower in the outfield concourse. The shower was formerly installed at the old White Sox stadium, Comiskey Park.
Ace the Toronto Blue Jays mascot jokes around with an usher at the Rogers Centre in Toronto, ON.
Ushers at Coors Field in Denver, CO walk the seats just after the gates open.
An usher sleeps on a post-game train back to downtown after a game at Citizens Bank Park in Philadelphia, PA.
Dodger Stadium in Los Angeles, CA is repainted during every off-season.
Fans shag balls on Waveland Avenue during batting practice at Wrigley Field in Chicago, IL. Dave Davison, second to the right, has collected more than 5000 balls in more than 20 years.
See "A Ballpark Tour, in Every Major League City," published by The New York Times.