Which two key wines are produced in the region of Niederösterreich?

The correct answer identifies Wachau and Weinviertel as key wines produced in the region of Niederösterreich. Wachau is renowned for its high-quality white wines, primarily made from the Grüner Veltliner and Riesling grape varieties. The region is celebrated for its unique terroir, including steep vineyards and a continental climate which contribute to the wines' distinctive minerality and balance.

Weinviertel, on the other hand, is notable for producing a variety of wines, particularly Grüner Veltliner, which is recognized for its fresh and peppery characteristics. It is distinguished as the first region in Austria to attain the designation of DAC (Districtus Austriae Controllatus), ensuring quality and authenticity in its wine production.

This combination of Wachau’s premier wine status and Weinviertel’s designation as a vital wine-producing area in Niederösterreich underscores the significance of both in the region’s wine heritage.