Stradivarius violins often sell for millions. There's a long history behind them, and violinists who swear they sound better than modern ones. This week, a violin made by famed Italian luthier Antonio ...

This week, a violin made by famed Italian luthier Antonio Stradivari could become the most expensive musical instrument ever sold at auction. Sotheby's is estimating that a Stradivarius made in 1714 ...