Masses of tourists ascend the broad staircase of the Pyramid of the Moon in the ancient Meso-American city of Teotihuacan, outside Mexico City, Mexico, beneath a pale blue sky dusted with clouds.
Masses of tourists ascend the broad staircase of the Pyramid of the Moon in the ancient Meso-American city of Teotihuacan, outside Mexico City, Mexico, beneath a pale blue sky dusted with clouds.