In Winkel stands Germany's oldest stone house, the "Graues Haus" (“Grey House”). For a long time it was believed that Rabanus Maurus lived and in 856 died there. Schloss Vollrads, outside Winkel, with its ancient watertower likewise belongs among the noteworthy sights. On the town's northeast limit near Hattenheim stands Schloss Reichartshausen (founded in the 12th century) with its outbuildings, which about 1900 were remodelled to look like follies. It nowadays houses the European Business School. In the middle of the community stands the "Brentanohaus". Here, Goethe spent some time in 1814 as a guest of the Frankfurt banking family Brentano. The family's children were Clemens, Gunda and Bettina Brentano. Karoline von Günderrode, a poet and one of Bettina's friends, stabbed herself here in Winkel in 1806 on the Rhine's bank out of lovesickness and life weariness. Since 2003, the barn across from the "Brentanohaus" has hosted the cultural and event venue "Brentanoscheune" ("Scheune" means “barn”).