One of the most interesting contemporary outdoor art exhibits in the city lies tucked away in Vila Madalena, behind the São Paulo Cemetery. A narrow, windy alley covered in uneven cobblestones that stretch the length of two or three city blocks is covered from top to bottom in graffiti. The first drawing here, in the 1980s, was of Batman (hence the alley's nickname); today, the walls feature dozens of amazing graffiti drawings of mythical creatures, cartoon figures, animals, and pop art, some of which are striking symmetrical black-and-white designs, while others feature mind-blowing psychedelic colors. Be sure to visit during daylight hours, and allow yourself at least 45 minutes to an hour to take it all in.