Why are so many NFL stadiums a different design at one end?

Even stranger, the Tampa Bay Lighting played hockey in a domed stadium - Tropicana Field. They played there 3 of their first 4 seasons when they were bad.

http://images.google.com/imgres?imgurl=http://www.stadiumsofprofootball.com/past/images/cleve08950.jpg&imgrefurl=http://www.stadiumsofprofootball.com/past/ClevelandStadium.htm&usg=__y5Kghj6e_3Z8219cFis9Lj_jxxU=&h=316&w=450&sz=69&hl=en&start=1&um=1&tbnid=CQwkxlMZNrZJZM:&tbnh=89&tbnw=127&prev=/images%3Fq%3DMunicipal%2BStadium%2Bcleveland%26hl%3Den%26client%3Dfirefox-a%26rls%3Dorg.mozilla:en-US:official%26hs%3DZRT%26sa%3DX%26um%3D1
Pretty close to round.

Let’s be fair to the 'Stick’s designers. Nothing, short of a roof, could cut down on those swirling winds.

Ahh, the halcyon days of my youth. August nights at the ballpark, wearing a parka, gloves, covered in a blanket, watching mediocre baseball. I <3 you, Candlestick. (Nearly frozen my ass off a couple times at PacBell or whatever it’s called now, too. It might not be as cold or windy as Candlestick, but it’s still San Francisco.)

Incidentally, they are planning to have a college football bowl game at the new Yankees Stadium.

They are also planning a few other college FB games at Yankee stadium. I think one of them is Army vs. Notre Dame.

Seattle was a domed stadium, so it doesn’t belong in this group. The other cookie cutter stadiums were Shea in New York, RFK in Washington, and Jack Murphy Stadium in San Diego.

FWIW, Heinz Field in Pittsburgh is built that way for the skyline/river/hillside view.