Some fantastic places I have been:
Paris, France
Mont Michel, France
Reims, France
Chartres, France
Versailles, France
London, England
Windsor, England
York, England
Canterbury, England - shook hands with Archbishop of Canterbury
Berlin, Germany
Dresden, Germany - attended wedding in renovated Frauenkirche
Leipzig, Germany - Bach Fest and "fell onto" Prince William of England in the Thomaskirche
Lutherstadt-Wittenburg, Germany - heard brother-in-law of Dietrich Bonhoeffer preach at St. Mary's
Munich, Germany
Augsburg, Germany
Ulm, Germany - climbed bell tower at Ulm Munster
Nuremberg, Germany
Wartburg Castle, Germany
Erfurt, Germany
Hamburg, Germany
Magdeburg, Germany
Lubeck, Germany
Garmisch-Patenkirchen, Germany
Salzburg, Austria
Bern, Switzerland
Prague, Czech Republic
Dublin, Ireland