A burgeoning niche in the arts & culture world, street art tourism has obvious appeal. In Argentina, Graffitimundo has began offering walking tours of Buenos Aires last year. Mainstream success may be on the immediate horizon, as the group was featured this past weekend in the Washington Post. The article is complemented by a diverse slide show, expressing the strong range of street art found in the city and offering (essentially) a digital tour of the top spots. Pictured above, Graffitimundo co-founder Marnia Charles leads a ground of enthusiasts.