This is a store like no other. Not only is the 20th Century Emporium full-bore retro, it has a scholarly edge that is lacking in most retail shops. That's because the emporium was created in conjunction with the opening of a related permanent exhibit at the Lakewood Heritage Center. Some of the merchandise is hokey -- Aunt Bee's Mayberry Cookbook, for example -- but, thankfully, there isn't a trace of Betty Boop anywhere. What patrons will find is a retro penny-candy collection (fifty kinds), oilcloth linens, Depression-era glass and museum-quality prints of old Denver.