Mexart, a Mexican cultural festival, runs until March 15 in cities including London, Manchester, Cardiff and Edinburgh. Aztecs, an exhibition with related events, family workshops, lectures and a Festival of Chocolate, is at the Royal Academy of Arts, Piccadilly, London W1 until April 11. Mexart information from Itzel Vargas, Mexican Embassy, Tel: 020 7499 8586 Aztecs information, Tel: 020 7300 8000 www.royalacademy.org.uk