MEXICO

Sites visited include the Maya ruins of Palenque, Teotihuacan, and Chichen Itza; a rainforest village inhabited by pure descendants of the Maya; a Yucatan cenote; a zipline running though the rainforest canopy; the Spanish colonial town of Morelia; Jalisco agave plantations; gray whales wintering in a Baja lagoon; and the forests of Michoacan, where monarch butterflies gather. Hosted by Peter Greenberg.

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