Top 10 Most Expensive Mistakes of All Time 

10. Excite.com

9. New SNCF Trains

8. London Millennium Bridge

7. A Million Dollar Typo by Alitalia

6. The Million Dollar Decimal Error

5. Never throw away your bitcoin

4. The Lottery

3. The S.I. Unit Confusion

2. A Million Dollar Stock Market Typo

1. Gold Mine for Sale