Gorgeous curves on the north elevation of the Simpson Querrey Biomedical Research Center.

The two cores got off to a big lead at the Simpson Querrey Biomedical Research Center but now the ironwork is making a move, gaining ground on the concrete towers.

The south elevation of the Simpson Querrey Center gets all the sunlight and attention, but around back along Superior Street, the curvy steel cuts quite the striking figure. It’s definitely worth watching this one from the south and the north. Of course, as is usually the case with most high-rise construction projects, do it on a sunny day. Remember, this phase of the Perkins+Will design will be 14 stories high.