The largest whisky collection in the world, which consists of 3,900 bottles, is going up for auction in 2020. Richard Gooding, the late owner of the collection, spent two decades gathering the rarest bottles of single malt Scotch whisky in the world. While the sales could total more than $10 million, some bottles, including the 60-Year-Old Macallan 1926 Fine and Rare, could be sold for more than $1 million each.