Leonardo da Vinci’s "Codex Leicester"
- Who Piece was Created: Leonardo da Vinci
The 72-page document, which contains Leonardo’s sketches and ideas about subjects like astronomy, mechanics, botany, mathematics and architecture, was written between 1506 and 1510. - When Piece was Created: 1510
- Price at Auction: $30.8 million
- Where Sold: Christie’s
- When Sold: 1994
- To Whom Sold: Bill Gates
