Sobibór (or Sobibor , or , ] ) was a Nazi German extermination camp built and operated by the SS near the railway station of Sobibór during World War II, within the semi-colonial territory of General Government of the occupied Second Polish Republic.
 The camp was part of the secretive Operation Reinhard, which marked the deadliest phase of the Holocaust in German-occupied Poland.
 The camp was situated near the rural county's major town of Włodawa (called "Wolzek" by the Germans), 85 km south of the provincial capital, Brest-on-the-Bug (Brześć nad Bugiem in Polish).
 Its official German name was "SS-Sonderkommando Sobibór".
 Jews from Poland, France, Germany, the Netherlands, Czechoslovakia and the Soviet Union (including Jewish-Soviet POWs), were transported to Sobibór by rail.
 Most were suffocated in gas chambers fed by the exhaust of a large petrol engine.
 Up to 200,000 people were murdered at Sobibór and possibly more.
 At the postwar trial against the former "SS" personnel of Sobibór, held in Hagen two decades into the Cold War, Professor Wolfgang Scheffler estimated the number of murdered Jews totalled a minimum of 250,000.
 This would make it the fourth worst extermination camp, after Bełżec, Treblinka, and Auschwitz.
Henry (Harry) Alexander Ogden aka H. A. Ogden (1856–1936) was an American illustrator particularly of historical and military subjects.
 He was born in Philadelphia on July 17, 1856 but moved to Brooklyn, New York when he was quite young and it was at the Brooklyn Institute and the Brooklyn Academy of Design that he received his first training in art.
 At the age of 17, he began work with Frank Leslie's Illustrated Newspaper.
 This allowed him to travel extensively around the United States and Europe.
 One visit to the American West in 1877 resulted in over 200 illustrations.
The NSDAP Office of Foreign Affairs (German: "Außenpolitisches Amt der NSDAP", "A.P.A." or "APA") was a Nazi Party organization.
 It was set up in April 1933 in the Hotel Adlon in Berlin immediately after the Nazis' 'Machtergreifung'.
 It was led by Alfred Rosenberg.
 It was one of the central authorities for the foreign policy of Nazi Germany, alongside the Auswärtigen Amt or Foreign Office (AA) under the leadership of Neurath, the Auslandsorganisation (NSDAP/AO) of Ernst Wilhelm Bohle, the Bureau under Joachim von Ribbentrop (Dienststelle Ribbentrop) and part of the Reichsministerium für Volksaufklärung und Propaganda (RMVP) under Joseph Goebbels.
The Hotel Adlon Kempinski Berlin is a luxury hotel in Berlin, Germany.
 It is located on Unter den Linden, the main boulevard in the central Mitte district, at the corner with Pariser Platz, directly opposite the Brandenburg Gate and the Memorial to the Murdered Jews of Europe.
The history of the Jews during World War II is almost synonymous with the Jewish persecution and murder of unprecedented scale in modern times in political Europe inclusive of European North Africa (pro-Nazi Vichy-North Africa and Italian Libya).
 The massive scale of the Holocaust which happened during World War II heavily affected the Jewish nation and world public opinion, which only understood the dimensions of the Final Solution after the war.
 The genocide known as HaShoah in Hebrew, aimed at the elimination of the Jewish people on the European continent.
 It was a broadly organized operation led by Nazi Germany, in which approximately six million Jews were murdered methodically and with horrifying cruelty.
 During the Holocaust in occupied Poland, more than one million Jews were murdered in gas chambers of the Auschwitz concentration camp alone.
 The murder of the Jews of Europe affected Jewish communities in Albania, Austria, Belarus, Belgium, Bosnia & Herzegovina, Channel Islands, Croatia, Czech Republic, Estonia, France, Germany, Greece, Hungary, Italy, Latvia, Libya, Lithuania, Luxembourg, Macedonia, Moldova, The Netherlands, Norway, Poland, Romania, Russia, Serbia, Slovakia, and Ukraine.
The Memorial to the Murdered Jews of Europe (German: "Denkmal für die ermordeten Juden Europas" ), also known as the Holocaust Memorial (German: "Holocaust-Mahnmal"), is a memorial in Berlin to the Jewish victims of the Holocaust, designed by architect Peter Eisenman and engineer Buro Happold.
 It consists of a 19000 m2 site covered with 2,711 concrete slabs or "stelae", arranged in a grid pattern on a sloping field.
 The stelae are 2.38 m long, 0.95 m wide and vary in height from 0.2 to .
 They are organized in rows, 54 of them going north–south, and 87 heading east–west at right angles but set slightly askew.
 An attached underground "Place of Information" (German: "Ort der Information" ) holds the names of approximately 3 million Jewish Holocaust victims, obtained from the Israeli museum Yad Vashem.
British Embassy, Berlin (German: "Britische Botschaft, Berlin" ) is the United Kingdom's diplomatic mission to Germany.
 It is located on 70-71 Wilhelmstraße, near the Hotel Adlon.
 The current ambassador is Sir Sebastian Wood.
Hotel Adlon is a 1955 West German drama film directed by Josef von Báky and starring Sebastian Fischer, Nelly Borgeaud and René Deltgen.
 The film portrays life at the luxurious Berlin Hotel Adlon from 1907 to 1945.
 It was inspired by the autobiography of Hedda Adlon, the owner of the hotel.
The Raoul Wallenberg Emlékpark (memory park) in the rear courtyard of the Dohány Street Synagogue holds the "Memorial of the Hungarian Jewish Martyrs" — at least 400,000 Hungarian Jews were murdered by the Nazis.
 Made by Imre Varga, it resembles a weeping willow whose leaves bear inscriptions with the names of victims.
 There is also a memorial to Wallenberg and other Righteous Among the Nations, among them: Swiss Vice-consul Carl Lutz; Giorgio Perlasca, an Italian man who, with a strategic escamotage, declared himself the Spanish consul, releasing documents of protection and current passports to Jews in Budapest without distinction (he saved five thousand); Mons.
 Angelo Rotta, an Italian Prelate Bishop and Apostolic Nuncio of the State of Vatican City in Budapest, which issued protective sheets, misrepresentations of baptism (to save them from forced labor) and Vatican passports to Jews, without distinction of any kind present in Budapest (saving fifteen thousand), who saved, with his secretary Mons.
 Gennaro Verolino tens of thousands of Hungarian Jews during World War II.
Berlin Brandenburger Tor (in German "Bahnhof Berlin Brandenburger Tor") – formerly Berlin Unter den Linden – is an underground railway station in the central Mitte district of Berlin, Germany, located on the Unter den Linden boulevard near Hotel Adlon, Pariser Platz and Brandenburg Gate.
 It is served by the Berlin S-Bahn and U-Bahn, as well as local bus lines.

Question: In what city can one visit the Memorial to the Murdered Jews of Europe and Hotel Adlon?
Answer: Berlin, Germany