The world’s largest yard sale is happening on the Herkimer County Fairgrounds right now. There are 154 vendors with thousands of items for sale. It will be the best day of shopping in Central New York! Enjoy great savings on baby items, tools and household items. Crafts and jewelry, antiques, furniture, toys and more are on sale all day today (Saturday June 22nd 2013). It's all in one place, one great day of shopping, the world’s largest yard sale is from 9 to 4 at the Herkimer County Fairgrounds.