Local farmers sell fresh chillies and citrus fruits at Oxkutzcab market. / The Iglesia de San Servacio, rebuilt in the early 1700s, is in Valladolid on the edge of the Parque Francisco Canton. / Relax on hammocks at Laguna Bacalar and enjoy the still, clear waters. / Cenobia Moo, a Valladolid market vendor. / Main image: El Castillo is at the heart of Chichén Itzá, a Unesco World Heritage site in the Yucatán Peninsula. Visit it in the afternoon, when the setting sun casts its rays on the incredible structures, or after dark, when a spectacular light show illuminates it.