Location #1: German Embassy
At 1475 Massachusetts Avenue Northwest, Washington, D.C., United States
Location #2: Klopstockstrasse Second Rate Hotel
Hamburg, Germany
Note from the webmaster: Exact location unknown. I’m not sure if this structure still stands.
Location #3: In Manhattan
At 1 Bowling Green, Manhattan, New York, United States
Location #4: Laboratory
1111 Marcus Avenue, New Hyde Park, Long Island, New York, United States
* A contribution by Ray Brown!
Location #5: In Portugal
At Rossio Square, Lisbon, Portugal