Hotel Adlon Kempinski Berlin stands on Pariser Platz as the physical monument to Lorenz Adlon’s 20 million gold mark investment—the most expensive hotel construction in European history when it opened in 1907. Kaiser Wilhelm II paid an annual retainer of 150,000 gold marks to guarantee rooms remained perpetually available for his state visitors, refusing entry … Continue reading Hotel Adlon Kempinski Berlin: The Kaiser’s 20 Million Gold Mark Command Post