The Norfolk Scope.
The arena was designed by Italian architect/engineer Pier Luigi Nervi
Featuring the world's largest reinforced thinshell concrete dome (though eclipsed by the Seattle Kingdome from 1976 to 2000)
I love Scope. I think it is beautiful, but since it is small, it seats only about 10,000, it is bypassed for bigger venues. Pity, more people don’t know about it.