Mexico City Tourist Office (Sala A1, Mexico City Airport, in National Arrivals. 55/5786-9002. www.mexicocity.gob.mx). Tourism Secretariat (Federal) (Av. Presidente Masarik 172, Col. Polanco. 55/3002-6300, 55/5250-0027, or 800/482-9832. www.travelguidemexico.com). Tourism Secretariat (DF) (Av. Nuevo León 56, at Laredo, Col. Condesa. 55/5212-0260).