Question: What popular tourist destination was built in the 1960's in the city that had the Pruitt-Igoe complex?
Sentence (from "History of St. Louis (1905–80)"): Although St. Louis made civic improvements in the 1920s and enacted pollution controls in the 1930s, suburban growth accelerated and the city population fell dramatically from the 1950s to the 1980s.
Relevant evidence: No