Traveled to Speyer: visited the Cathedral; Then to Bad Dürkheim to buy a bottle of Rheinland-Pfalz Riesling; Then on to Worms to visit the Worms Cathedral where Luther defended his thesis before the Diet of Worms in 1521. For more information on the Speyer Cathedral: Wikipedia. For more information on the Worms Cathedral: Wikipedia. For more information on the Weinstrasse (wine growing region of the RheinPfalz): Wikipedia.