I think Fresno's city hall shows a very futuristic design. But it also mirrors the look of the peaks of the nearby Sierra Nevada mountains. The building was designed by Arthur Erickson and opened in 1991.
http://www.arthurerickson.com/B_fres.html
It replaced the old 1941 city hall which was named by the Museum of Modern Art in New York as one of the most significant buildings constructed in the US from 1932 to 1944.
