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House of the Post Office on the Puerta del Sol, Madrid, Spain. Puerta del Sol is the centre (Km 0) of the radial network of Spanish roads Stock Photo - Alamy
![Old Royal Post Office Building, Puerta Del Sol, Madrid, Spain Editorial Photo - Image of post, exterior: 140495726 Old Royal Post Office Building, Puerta Del Sol, Madrid, Spain Editorial Photo - Image of post, exterior: 140495726](https://thumbs.dreamstime.com/z/old-royal-post-office-building-puerta-del-sol-madrid-spain-old-royal-post-office-building-now-regional-government-office-140495726.jpg)
Old Royal Post Office Building, Puerta Del Sol, Madrid, Spain Editorial Photo - Image of post, exterior: 140495726
![Hypermodern subway station of Sol with the Post Office in the background | Puerta del Sol | Madrid | Travel Story and Pictures from Spain Hypermodern subway station of Sol with the Post Office in the background | Puerta del Sol | Madrid | Travel Story and Pictures from Spain](http://www.traveladventures.org/countries/spain/images/puerta-del-sol09.jpg)