Diagonal Norte is a station located near a national historic monument erected in what year?
Diagonal Norte (Buenos Aires Underground): Diagonal Norte is a station on Line C of the Buenos Aires Underground. Obelisco de Buenos Aires: The Obelisco de Buenos Aires (Obelisk of Buenos Aires) is a national historic monument and icon of Buenos Aires. Obelisco de Buenos Aires:  Located in the Plaza de la República in the intersection of avenues Corrientes and 9 de Julio, it was erected in 1936 to commemorate the fourth centenary of the first foundation of the city.
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