ARGENTINA
REGIÓN PAMPAS
Buenos Aires Province
BUENOS AIRES
The "South American Sojourn" Trip
PirĂ¡mide de Mayo
Wednesday September 17th, 2014
PirĂ¡mide de Mayo is the oldest national monument in the City of Buenos Aires.
Its construction was ordered in 1811 by the Primera Junta to celebrate the first anniversary of the May Revolution.