Zócalo

"Its massive size, centrality to daily life in the capital, and easy accessibility (a Metro station opens up right onto the plaza) makes the Zócalo an ideal place for large-scale temporary exhibits. The government hosts occasional exhibits and makes entry free for residents and visitors alike. Past exhibits have included Gregory Colbert's "Ashes and Snow," a show of large-format photos of animals and people, and Willy Souza's " Mexico en tus sentidos" (" Mexico in your senses"), lush, vivid photos of people and places around Mexico. To see if a show is planned during the time you'll be visiting, check the website of the Secretary of Tourism."