For Robert Butterfield, his cave started as an innocent homage to racing legend Dale Earnhardt Sr. What happened soon thereafter has perhaps become the biggest shrine to the racing legend's career and family. What are Butterfield's cave faves? The 16-foot long handcrafted 1/24th scale Daytona track, the surround-sound stereo system, and the custom hand-painted diecast cars Dale drove throughout his career that are not sold on the market. The kegerator? That comes in a far distant fourth.