Buildings 3 and 4 El Tajin

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South side of Building 3, Central Zone	South side of Building 3, Central Zone

South side of Building 4.	North side of Building 4.

North side of Building 3 (left), Pyramid of  the Niches (center) and Building 4 (right).	North side of Building 4, Pyramid of the Niches,  and retaining wall on the right.