We’d really like to see the ‘‘Big Blue Bug’’ climb the ‘‘Superman Building.’’ The 428-foot-tall Art Deco-style skyscraper on Kennedy Plaza in Providence is the state’s tallest building and a fixture on the city skyline. The 26-story structure opened in the late 1920s as the Industrial Trust Tower, but gained its nickname because its stepped design resembles Clark Kent’s Daily Planet newspaper building. Locals will do well to stick with the nickname. Currently called the Bank of America Building, it was recently sold and could change names again.