We went to one several years ago called the Worlds Longest Yard Sale. It was 450 miles long. Started in AL and ended 450 miles later. :lol: Actually we went twice. This was about 15 years ago and the problems we found was that food and bathrooms were very scarce. We bought a great antique rocking chair that felt like the bottom had been grooved for my bottom. :lol: It was alot of fun.