From England’s Highclere Castle to Germany’s Schloss Löwenstein and Schloss Mespelbrunn, discover the great castles and palaces of Europe during this week’s programming. At the Czech Republic’s Lobkowicz Palace, enjoy a guided tour led by Czech nobleman William E. Lobkowicz and his son, William Lobkowicz Jr., who offer a behind-the-scenes look at the palace’s treasured art and share the remarkable story of how this prized collection came together.