List of Most Expensive Accidents in History An accident is defined as "an undesirable or unfortunate happening that occurs unintentionally and usually results in harm, injury, damage, or loss". Our aim is to list the top 11 most expensive accidents in the history of the world as measured in dollars. This includes property damage and expenses incurred related to the accident such as cleanup and industry losses. Many of these accidents involve casualties which obviously cannot be measured in dollar terms. Each life lost is priceless ... Read More