References
   

Buildings, restaurated with Radler & Ruf - equipment and JOS-System:

 

  
Reichstag Met Life Building

Germany: Reichstagsgebäude

USA: Met Life Building
   
Justizpalast Buckingham Palace

Germany: Justizpalast

Great Britain: Buckingham Palace
   
Westminster Abbey Louvre

Great Britain: Westminster Abbey

France: Louvre
   
Notre Dame Parliament Hill

France: Notre Dame

Canada: Parliament Hill
   
Petersdom  

Italy: Petersdom