Casa Rosada, Executive mansion in Plaza de Mayo, Buenos Aires, Argentina.
Casa Rosada is a historic government building in Plaza de Mayo, Buenos Aires, Argentina. The four-story structure combines neoclassical, Italianate and Romanesque elements with offices and several ceremonial halls.
A Spanish colonial fort from 1594 stood at this location before the site became a customs house following independence. The present building took shape between 1873 and 1898, when earlier structures were merged into a unified seat of government.
The building takes its name from the rosy facade, created by mixing lime with cattle blood. Argentine presidents have addressed large crowds from the balconies overlooking the square.
Free guided tours take place on weekends and must be booked online in advance, with a valid passport required at the entrance. Tours last about an hour and cover several rooms as well as the underground excavations.
An underground museum displays the foundation walls of the old fortress along with tunnels and wells from Spanish colonial times. The excavated remains lie directly beneath the current offices and are accessible during guided tours.
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