This controversial 15-story building (1982) was designed by Michael Graves and catapulted the postmodern architect to celebrity status. But the blocky, pastel-colored edifice has never been popular with the people who work inside it, and in recent years the city has found structural problems that mean the building will need massive reconstruction in order to stay standing. At least it's been made somewhat green: an eco-roof was installed in 2006.

Crouched over the main doors of the Portland Building is Portlandia, an immense statue of the Goddess of Commerce, Portland's supposed patroness. This figure is, at 36ft, the second-largest hammered-copper statue in the US (after the Statue of Liberty).