El Tiradito — Spanish for 'the little castaway' — is a small open-air shrine in Barrio Viejo, just south of the Tucson Convention Center. It is said to be the only Catholic shrine in the United States dedicated to a sinner buried on unconsecrated ground. The little corner is hung with hundreds of candles, paper milagros, photographs and folded notes.
Local tradition holds that if you light a candle and it burns through the night, your wish will come true. The site has been recognised by the National Register of Historic Places — a first for a folk shrine. Free and always open.