Known for its focus on urban planning, Portland, Oregon, takes its architecture seriously. It’s second only to Chicago in the number of LEED-accredited “green buildings” in the United States and is steadfast in preserving and repurposing older buildings. Height restrictions on new construction preserve views of Mt. Hood. But as I roamed around this likable city, I found that the most impressive buildings were those that predated the concept of urban planning. Read about the top five buildings in Portland >