1917 – Palacio de Comunicaciones, Madrid, Spain
Architect: Antonio Palacios
The most prominent of the buildings at the Plaza de Cibeles is the Palacio de Comunicaciones. The cathedral-like landmark was built between 1905 and 1917 by Antonio Palacios as the headquarters of the post office.
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Published December 9, 2009 | Last Updated March 5, 2026

