Crossword clues for Chicago attraction 4 lettersAnswerClueLOOPChicago attractionTREXAttraction at Chicago's Field MuseumZOOSAttractions at San Diego and Chicago's Lincoln ParkADLER___ Planetarium (Chicago attraction)NAVYPIERMajor Chicago tourist attractionNAVYPIERChicago lakefront attractionZOOChicago's Lincoln Park attraction.