Factgirl's fact of the day:

At any given time there are at least 50,000 items in Interpol's Stolen Works of Art Database.
Italy, France and the Czech Republic are the countries with the most art theft.
Paintings and sculptures account for 50% of all art stolen.
Rembrandt is the artist with works most likely to be stolen.

Most recent missing: 
     Chairs, candlesticks and banners from a church in England
     Two 20th century colorful sculptures from Germany

Most recent recovered:
     "The Gateway" a 1951 Lowry painting stolen and found in London
     A 15th century Icon of Saint Boris and Saint Gleb - stolen in Russia, recovered in Germany

-It's a fact

scource: Interpol FAQ