Riesling is best known for producing the wines of Germany's Mosel-Saar-Ruwer, Pfalz, Rheinhessen and Rheingau wines. While the sweet German Beerenauslese and Trockenbeerenauslese wines are often celebrated for their high sugar levels and ability to age almost endlessly, they are rare and expensive. The wines from Germany's Mosel region are perhaps the purest expression of the grape, offering lime, pie crust, apple, slate and honeysuckle characteristics on a light-bodied and racy frame. Germany's Rheinhessen, Rheingau and Pfalz regions produces wines of similar characteristics, but with increasing body and spice.