Title argues by Chicagoens
By A Yahoo! Contributor, 10/22/04
The messurment for tallest building includes spire but not antena so the top flor of the sears tower is above the top floor of the Petronis tower (current offical record holder) but the spire on the petronis tower's extend above the top floor of the sears tower while the antena on the sears tower extends above the spire of the petronis, but the antena isn't counted.
Great view though