Schloss Johannisberg.
Perched on a quartzite hill in the Rheingau, Schloss Johannisberg is widely considered the birthplace of Riesling culture. While its history as a Benedictine monastery dates back over 1,200 years, the estate gained global viticultural fame in the 18th century as the world’s first vineyard dedicated solely to the Riesling grape. It is the site where late-harvest Spätlese and German Eiswein were famously pioneered. Visitors can explore the neoclassical palace grounds and the historic basilica, but the true heart of the estate lies in the "Bibliotheca Subterranea"—a 900-year-old cellar vault housing liquid treasures dating back to 1748. The terrace offers sweeping views of the Rhine, providing a scenic backdrop to sample the estate’s mineral-forward wines exactly where they are grown.