One person’s trash is another’s treasure. For this list, we’re looking at the most valuable finds of all time, some discovered by accident, some sought very much on purpose; and while some are individual objects worth an extraordinary amount, others are large quantities of riches. As well, note that some of these discoveries took place over a number of years or are still ongoing. Welcome to WatchMojo, and today we’ll be counting down our picks for the Top 10 Most Expensive Items That People Discovered.